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Artículos de revistas sobre el tema "Wheat Planting time"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 5 de febrero de 2022

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1

Tursunov, Sotvoldi. "Does wheat yield depend on variety and planting time?" E3S Web of Conferences 258 (2021): 04033. http://dx.doi.org/10.1051/e3sconf/202125804033.

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This article describes in detail the influence of sowing dates on the growth, development and productivity of various varieties of winter wheat. Wheat occupies a special place among grain crops in terms of nutritional value and yield. It is known that Uzbekistan, winter wheat is saturated with a vital factor - light. On average, 2,500-3,000 hours of sunshine per year fall on the soil of our country. Therefore, in agriculture, it is possible to determine the sowing time, which corresponds to the biological properties of winter wheat. Wheat bread is superior to other products in its deliciousnes

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2

Johansson, Eva, Petter Oscarson, and Tomas Lundborg. "Effect of planting date on flowering time in wheat." Physiologia Plantarum 96, no. 2 (February 1996): 338–41. http://dx.doi.org/10.1034/j.1399-3054.1996.960226.x.

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Johansson, Eva, Petter Oscarson, and Tomas Lundborg. "Effect of planting date on flowering time in wheat." Physiologia Plantarum 96, no. 2 (February 1996): 338–41. http://dx.doi.org/10.1111/j.1399-3054.1996.tb00223.x.

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4

Drost, D. T., and H. C. Price. "Stand Establishment of Fluid-drilled Tomato in Rye and Wheat Tillage Systems." HortScience 26, no. 12 (December 1991): 1475–78. http://dx.doi.org/10.21273/hortsci.26.12.1475.

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Tomatoes (Lycopersicon esculentum Mill.) were grown in conventional tillage (CT), rye (Secale cereale L.) mulch no tillage (RNT), and wheat (Triticum aestivum L.) mulch no tillage (WNT). Either germinated seeds (GS) or raw seeds (RS) were fluid drilled on several dates in 1981 and 1982. Tomato stands in no tillage (NT) generally were equal to or higher than in CT, and stands improved with later plantings in each year. Plant stands were unaffected by GS and RS. Time to 50% emergence (T50) was up to 4 days less in NT than in CT and 2 to 3 days less from GS than RS. Yields with CT were twice as h

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5

Li, Q. Q., X. B. Zhou, Y. H. Chen, and S. L. Yu. "Grain yield and quality of winter wheat in different planting patterns under deficit irrigation regimes." Plant, Soil and Environment 56, No. 10 (October 20, 2010): 482–87. http://dx.doi.org/10.17221/14/2010-pse.

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Limited water resources restrict winter wheat grain yield and quality in the Huang-Huai-Hai Plain of North China, and establishing optimal planting patterns according to crop water requirements is the key factor for achieving rational water use. In this paper, 4 planting patterns were applied, namely, uniform row (30 cm; traditional pattern), wide (40 cm)-narrow (20 cm) row, furrow (double lines in the furrow with 20 cm spacing, and 40 cm between furrows), and seed bed (double lines on the bed with 20 cm spacing, and 40 cm between beds). Each planting pattern was irrigated twice during the joi

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6

Yadav, R. L., Ravi Kumar, and R. S. Verma. "Effect of Planting Technique and Planting Density on Yield of Late Planted Sugarcane in North Central India." Experimental Agriculture 27, no. 3 (July 1991): 281–86. http://dx.doi.org/10.1017/s0014479700019001.

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SummaryIn the wheat–sugarcane rotation, which covers more than half of the growing area in subtropical India, planting of sugarcane is delayed until after the wheat harvest in April–May. This allows little time for the sugarcane to produce tillers and so results in smaller millable cane populations and yields than those from more timely (February–March) plantings. This study considers techniques such as ring and trench planting which might allow a high seed rate to compensate for reduced tillering. Yields obtained using these systems were about 20 t ha−1 greater than from the conventional flat

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7

Zhang, Wenmin, Martin Brandt, Alexander V. Prishchepov, Zhaofu Li, Chunguang Lyu, and Rasmus Fensholt. "Mapping the Dynamics of Winter Wheat in the North China Plain from Dense Landsat Time Series (1999 to 2019)." Remote Sensing 13, no. 6 (March 19, 2021): 1170. http://dx.doi.org/10.3390/rs13061170.

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Monitoring spatio-temporal changes in winter wheat planting areas is of high importance for the evaluation of food security. This is particularly the case in China, having the world’s largest population and experiencing rapid urban expansion, concurrently, it puts high pressure on food demands and the availability of arable land. The relatively high spatial resolution of Landsat is required to resolve the historical mapping of smallholder wheat fields in China. However, accurate Landsat-based mapping of winter wheat planting dynamics over recent decades have not been conducted for China, or an

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8

ARORA, V. K., A. S. SIDHU, K. S. SANDHU, and S. S. THIND. "EFFECTS OF TILLAGE INTENSITY, PLANTING TIME AND NITROGEN RATE ON WHEAT YIELD FOLLOWING RICE." Experimental Agriculture 46, no. 3 (May 28, 2010): 267–75. http://dx.doi.org/10.1017/s0014479710000311.

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SUMMARYPuddling coarse-textured soils for rice culture in the irrigated tract of the Indo-Gangetic Plains causes high soil strength in the upper layers. This may adversely affect growth and yield of following upland crops. It is possible that no-tillage (NT) in wheat (without residues of preceding rice crop) could aggravate this problem and reduce fertilizer nitrogen (N) use efficiency. In certain production scenarios, NT has been reported to be advantageous because it allows for earlier planting of wheat by eliminating delays caused by tillage. This study examined the combined effects of two

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9

Green, C. F., and J. D. Ivins. "Time of sowing and the yield of winter wheat." Journal of Agricultural Science 104, no. 1 (February 1985): 235–38. http://dx.doi.org/10.1017/s0021859600043185.

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Research conducted on sowing dates for wheat shows a trend towards increased yield as sowing is advanced (U.K.: Walker, 1980; Bingham et al. 1983; the Netherlands: Darwinkel, Hag & Kuizenga, 1977; Canada: Nass et al.1975; Briggs & Aytenfisu, 1979). In a review of the influence of drilling time on winter wheat in the U.K. McLean (1981) suggested October planting as the optimum. However, sowing before this time often results in increased yield (Bingham et al.1983).

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10

Elmiati, Reni, Zulfadly Syarif, and Auzar Syarif. "PRODUKTIVITAS GANDUM (Triticum aestivum L.) DAN CAISIM (Brassica rapa L.) PADA SISTEM TUMPANGSARI." Jurnal BiBieT 3, no. 1 (November 21, 2018): 1. http://dx.doi.org/10.22216/jbbt.v3i1.2215.

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<p>Penelitian tumpangsari gandum/caisim bertujuan untuk mengetahui pengaruh jarak tanam gandum (<em>Triticum aestivum L</em>.) dan waktu penanaman caisim (<em>Brassica rapa L</em>.) terhadap produktivitas gandum dan caisim. Caisim ditanam satu baris diantara dua baris gandum. Sebagai pembanding terhadap hasil, ditanam gandum dan caisim secara tunggal. Percobaan menggunakan rancangan acak kelompok (RAK) faktorial dengan 3 ulangan. Perlakuan meliputi jarak tanam gandum 20cm x 25cm, 25cm x 25cm dan 30cm x 25cm dan waktu tanam caisim 9 minggu setelah tanam gandum (MST

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11

Green, C. F., G. A. Paulson, and J. D. Ivins. "Time of sowing and the development of winter wheat." Journal of Agricultural Science 105, no. 1 (August 1985): 217–21. http://dx.doi.org/10.1017/s0021859600055921.

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Research conducted on sowing dates has shown a trend towards increased yield as sowing is advanced for winter wheat (Darwinkel, Hay & Kuizenga, 1977; Walker, 1980) and winter barley (Selman, 1980; White, 1981). Green & Ivins (1985) have quantified the rate of yield decline for winter wheat as sowing is delayed after mid-September, giving a mean value of 0–35% per day. For a similar study on winter barley (Green, Furmston & Ivins, 1985) a yield decline of 0–43% per day delay in sowing was attributed to reductions in the number of ears per unit area as planting was delayed.

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12

Li, Fangjie, Jianqiang Ren, Shangrong Wu, Hongwei Zhao, and Ningdan Zhang. "Comparison of Regional Winter Wheat Mapping Results from Different Similarity Measurement Indicators of NDVI Time Series and Their Optimized Thresholds." Remote Sensing 13, no. 6 (March 18, 2021): 1162. http://dx.doi.org/10.3390/rs13061162.

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Generally, there is an inconsistency between the total regional crop area that was obtained from remote sensing technology and the official statistical data on crop areas. When performing scale conversion and data aggregation of remote sensing-based crop mapping results from different administrative scales, it is difficult to obtain accurate crop planting area that match crop area statistics well at the corresponding administrative level. This problem affects the application of remote sensing-based crop mapping results. In order to solve the above problem, taking Fucheng County of Hebei Provin

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13

Song, Yang, and Jing Wang. "Mapping Winter Wheat Planting Area and Monitoring Its Phenology Using Sentinel-1 Backscatter Time Series." Remote Sensing 11, no. 4 (February 21, 2019): 449. http://dx.doi.org/10.3390/rs11040449.

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Crop planting area mapping and phenology monitoring are of great importance to analyzing the impacts of climate change on agricultural production. In this study, crop planting area and phenology were identified based on Sentinel-1 backscatter time series in the test region of the North China Plain, East Asia, which has a stable cropping pattern and similar phenological stages across the region. Ground phenological observations acquired from a typical agro-meteorological station were used as a priori knowledge. A parallelepiped classifier processed VH (vertical transmitting, horizontal receivin

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14

Farooq, Omer, Muqarrab Ali, Muhammad Naeem, Abdul Sattar, Muhammad Ijaz, Ahmad Sher, Tauqeer Ahmad Yasir, and Muhammad Mazhar Iqbal. "IMPACT OF SOWING TIME AND PLANTING METHOD ON THE QUALITY TRAITS OF WHEAT." Journal of Global Innovations in Agricultural and Social Sciences 3, no. 1 (March 1, 2015): 08–11. http://dx.doi.org/10.17957/jgiass/3.1.676.

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15

Chen, Shi, Lingling Fan, Shefang Liang, Hao Chen, Xiao Sun, Yanan Hu, Zhenhuan Liu, Jing Sun, and Peng Yang. "Spatiotemporal Dynamics of the Northern Limit of Winter Wheat in China Using MODIS Time Series Images." Remote Sensing 12, no. 15 (July 24, 2020): 2382. http://dx.doi.org/10.3390/rs12152382.

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Studying the spatiotemporal changes of the northern limit of winter wheat (NLWW) in China is important to ensure regional food security and deal with the effects of climate change. Previous studies mainly used climate indicators to analyze the variation of the potential NLWW in different historical periods, while little attention has been paid to the actual migrations and changes of the NLWW. The objectives of the present study were three-fold: (i) to map the spatial distribution of winter wheat in northern China in 2001, 2007, 2014 and 2019; (ii) to extract the actual NLWW; and (iii) to quant

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16

Nie, Hanjiang, Tianling Qin, Hanbo Yang, Juan Chen, Shan He, Zhenyu Lv, and Zhenqian Shen. "Trend Analysis of Temperature and Precipitation Extremes during Winter Wheat Growth Period in the Major Winter Wheat Planting Area of China." Atmosphere 10, no. 5 (May 1, 2019): 240. http://dx.doi.org/10.3390/atmos10050240.

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In this study, the major winter wheat planting area of China is selected as the study area, with the time scale of the growth period of winter wheat (a total of 56 growth periods during October 1961 to May 2016). The significance, stability, magnitude of the trend and the average trend of the study area with eight temperature indices and seven precipitation indices of 453 meteorological stations are tested by Mann–Kendall method and Sen’s nonparametric method. The following observation can be made: (1) the cold extreme indices show strong and stable downward trend in most of the stations in th

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17

Kerr, NJ, KHM Siddique, and RJ Delane. "Early sowing with wheat cultivars of suitable maturity increases grain yield of spring wheat in a short season environment." Australian Journal of Experimental Agriculture 32, no. 6 (1992): 717. http://dx.doi.org/10.1071/ea9920717.

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Eleven field trials were sown in the northeastern wheatbelt of Western Australia to test the hypothesis that if wheat cultivars with suitable maturity are sown earlier than current practice, then higher grain yields will be achieved. The experiments included time of sowing treatments that ranged from early May to late June in 1988, 1989 and 1990. Seven commercial cultivars with a wide range of developmental patterns and maturities were used. Sowing between mid May and early June produced the highest grain yields. For plantings after early June, yields declined by approximately 250 kg/ha (15%)

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18

Donald, William W., and Tony Prato. "Profitable, Effective Herbicides for Planting-Time Weed Control in No-till Spring Wheat (Triticum aestivum)." Weed Science 39, no. 1 (March 1991): 83–90. http://dx.doi.org/10.1017/s0043174500057921.

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High herbicide costs and uncertainty about annual weed control at planting have limited adoption of no-till spring wheat production systems in the northern Great Plains. Chlorsulfuron, metsulfuron, and CGA-131036 at 10 to 20 g ai ha–1plus nonionic surfactant generally controlled both emerged kochia and wild mustard equally well (>80%) whether or not combined with glyphosate at 250 g ha–1plus nonionic surfactant. In two of three trials persistent phytotoxic residues of these sulfonylurea herbicides in soil controlled both weeds better in midseason and early summer 1 yr after treatment than d

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19

Woodruff, DR. "'WHEATMAN' a decision support system for wheat management in subtropical Australia." Australian Journal of Agricultural Research 43, no. 7 (1992): 1483. http://dx.doi.org/10.1071/ar9921483.

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This paper presents the basic relationships used in compiling a decision support system for wheat growers in the subtropical, prime-hard regions of Australia. The major factors addressed by this decision aid are climate variability, soil type and water status; N and P soil status and fertilizer addition; variety phenology, planting time and frost risk; weed infestation. The major decisions involved include fertilizer choice and quantity, choice of the variety development pattern to use for a given planting opportunity, and wild oat control measures. It demonstrates how the output from relative

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20

Kuznetsova, Yu A., A. I. Bozhkov, and N. G. Menzyanova. "Planting density and culture time of wheat seedlings affect their growth rate and exometabolite production." Indian Journal of Plant Physiology 23, no. 3 (September 2018): 557–63. http://dx.doi.org/10.1007/s40502-018-0385-5.

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21

Thomas, J. A., G. L. Hein, and D. J. Lyon. "Spread of Wheat Curl Mite and Wheat Streak Mosaic Virus is Influenced by Volunteer Wheat Control Methods." Plant Health Progress 5, no. 1 (January 2004): 2. http://dx.doi.org/10.1094/php-2004-1206-01-rs.

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Wheat streak mosaic virus is the most damaging disease in winter wheat in the western Great Plains. The wheat curl mite is the vector of this virus and utilizes volunteer wheat as a “green bridge” to over-summer and re-infest fall planted winter wheat. This study demonstrates the effect of tillage and glyphosate control of volunteer wheat on mite movement and subsequent virus infection. Small mite populations (1 to 2 mites per tiller) caused high infection rates in winter wheat. Both tillage and glyphosate were effective at reducing mite populations on volunteer wheat, but tillage resulted in

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22

John, Freeha, Noor Abid Saeed, Sajid Nadeem, and Muhammad Hamed. "Integration of Planting Time and Insecticide to Manage Aphid Infestations in Wheat for Better Crop Productivity." Pakistan Journal of Zoology 49, no. 4 (July 2017): 1343–51. http://dx.doi.org/10.17582/journal.pjz/2017.49.4.1343.1351.

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23

Hoque, M. A., and M. R. Karim. "Upscaling and Evaluation of BARI Inclined Plate Planter." Agriculturists 13, no. 2 (January 30, 2016): 1–8. http://dx.doi.org/10.3329/agric.v13i2.26582.

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The BARI inclined plate planter was developed for one pass tillage and seeding operation. But the planter was not capable of planting small seeds as seeds were entering between the plate and base. So, six additional MS base plates were incorporated in the planter. Three plates were redesigned and fabricated for maize seed (9 cells); for wheat, mungbean, lentil, jute, etc (32 cells) and for rice seed (11 cells). Changing of inclination of the plate is needed to use same (32 seed cell) plates for different crops and to calibrate the planter for 10% more or less seed than the predefined rates. Fi

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24

Mkhabela, Manasah, Guy Ash, Mike Grenier, and Paul Bullock. "Testing the suitability of thermal time models for forecasting spring wheat phenological development in western Canada." Canadian Journal of Plant Science 96, no. 5 (October 1, 2016): 765–75. http://dx.doi.org/10.1139/cjps-2015-0351.

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Predicting crop development stages is fundamental to many aspects of agronomy (e.g., pesticides and fertilizer applications). Temperature is the main factor affecting plant development and its impact on crop development is often measured using thermal-time. We compared different thermal-time models to identify the best model for simulating spring wheat development in western Canada. Models compared include (i) North-Dakota growing-degree-day (NDGDD), (ii) growing-degree-day base-temperature zero (GDD0), (iii) growing-degree-day base-temperature five (GDD5), (iv) beta-function (BF), and (v) mod

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25

Zhang, Dongyan, Shengmei Fang, Bao She, Huihui Zhang, Ning Jin, Haoming Xia, Yuying Yang, and Yang Ding. "Winter Wheat Mapping Based on Sentinel-2 Data in Heterogeneous Planting Conditions." Remote Sensing 11, no. 22 (November 13, 2019): 2647. http://dx.doi.org/10.3390/rs11222647.

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Monitoring and mapping the spatial distribution of winter wheat accurately is important for crop management, damage assessment and yield prediction. In this study, northern and central Anhui province were selected as study areas, and Sentinel-2 imagery was employed to map winter wheat distribution and the results were verified with Planet imagery in the 2017–2018 growing season. The Sentinel-2 imagery at the heading stage was identified as the optimum period for winter wheat area extraction after analyzing the images from different growth stages using the Jeffries–Matusita distance method. The

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26

Dong, Qi, Xuehong Chen, Jin Chen, Chishan Zhang, Licong Liu, Xin Cao, Yunze Zang, Xiufang Zhu, and Xihong Cui. "Mapping Winter Wheat in North China Using Sentinel 2A/B Data: A Method Based on Phenology-Time Weighted Dynamic Time Warping." Remote Sensing 12, no. 8 (April 17, 2020): 1274. http://dx.doi.org/10.3390/rs12081274.

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Accurate mapping of winter wheat over a large area is of great significance for guiding policy formulation related to food security, farmland management, and the international food trade. Due to the complex phenological features of winter wheat, the cloud contamination in time-series imagery, and the influence of the soil/snow background on vegetation indices, there remains no effective method for mapping winter wheat at a medium spatial resolution (10–30 m). In this study, we proposed a novel method called phenology-time weighted dynamic time warping (PT-DTW) for identifying winter wheat base

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27

Pu, Liu, Li, Chen, Liu, Qi, Wei, and Zheng. "Planting Locations with Higher Temperature Produce More Bioactive Compounds and Antioxidant Capacities of Wheat." Agronomy 9, no. 9 (September 11, 2019): 538. http://dx.doi.org/10.3390/agronomy9090538.

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Bioactive compounds such as phenols and phytic acid in wheat contribute to antioxidant capacities. (1) Background: Prior studies drew a general conclusion that the environment affected bioactive compounds greatly, but how the single environmental factor affects these characteristics remains unclear. (2) Methods: We conducted that twenty-eight winter wheat genotypes were grown in replicated trials at seven locations in China for two consecutive years and subdivided the environmental factor into five soil factors and six meteorological factors to evaluate the impact on the antioxidant capabiliti

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Davidson, JL, KR Christian, DB Jones, and PM Bremner. "Responses of wheat to vernalization and photoperiod." Australian Journal of Agricultural Research 36, no. 3 (1985): 347. http://dx.doi.org/10.1071/ar9850347.

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The effects of vernalization and photoperiod on times from planting of seedlings to ear emergence were measured in 68 Australian and 49 overseas varieties of wheat, comprising a broad spectrum of genetic material, in a glasshouse in Canberra (latitude 35�S). Vernalization was carried out by growing germinated seedlings in the dark at 1-2�C for 6 weeks. Long photoperiods (16 h) separated unvernalized plants into two distinct groups, corresponding to commonly recognized spring and winter types. Responses to vernalization were generally small under natural photoperiods (11-15 h), but much more pr

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Attia, M. B., A. I. Farag, Saadeia M. Saed, and Nehal O. Swelam. "EFFECT OF PLANTING TIME AND STORAGE METHODS ON GRAIN WEEVILS, SITOPHILUS SPP (COLEOPTERA: CURCULIONIDAE) INFESTING WHEAT GRAINS." Menoufia Journal of Plant Protection 2, no. 2 (April 1, 2017): 101–9. http://dx.doi.org/10.21608/mjapam.2017.125606.

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KUCEY, R. M. N. "THE INFLUENCE OF RATE AND TIME OF MINERAL N APPLICATION ON YIELD AND N2 FIXATION BY FIELD BEAN." Canadian Journal of Plant Science 69, no. 2 (April 1, 1989): 427–36. http://dx.doi.org/10.4141/cjps89-054.

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Greenhouse experiments were conducted to determine the effect of rate and timing of nitrogen (N) fertilizer on growth, N uptake and N2 fixation by nodulated field beans (Phaseolus vulgaris L. ’GN1140’). Fertilizer N was added at 30, 60 or 120 mg kg−1 soil either at planting or at 2, 4, 6, 8 or 10 wk after planting. N2 fixation was determined by using 15N isotope dilution methods with spring wheat (Triticum aestivum ’Leader’) as a nonfixing control plant. Additions of N at 30 mg kg−1 soil had a stimulatory effect on plant growth, relative to plants not receiving N fertilizer, which was reflecte

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Eversmeyer, M. G., and C. L. Kramer. "Models of Early Spring Survival of Wheat Leaf Rust in the Central Great Plains." Plant Disease 82, no. 9 (September 1998): 987–91. http://dx.doi.org/10.1094/pdis.1998.82.9.987.

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Severe leaf rust epidemics, which result in economic yield reductions in the Great Plains wheat-producing region of the United States, are usually initiated by Puccinia recondita f. sp. tritici inoculum that has survived in the local field from the previous wheat crop until early spring. Models were developed for an epidemic year beginning at physiological maturity of one wheat crop to maturity of the following wheat crop. Meteorological variables for periods prior to final tiller development of the wheat crop during 1980 to 1992 at several sites in the central Great Plains winter-wheat-produc

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32

Kieckhefer, R. W., N. C. Elliott, W. E. Riedell, and B. W. Fuller. "YIELD OF SPRING WHEAT IN RELATION TO LEVEL OF INFESTATION BY GREENBUGS (HOMOPTERA: APHIDIDAE)." Canadian Entomologist 126, no. 1 (February 1994): 61–66. http://dx.doi.org/10.4039/ent12661-1.

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AbstractThe effect of greenbug, Schizaphis graminum (Rondani), infestations on yield components of early- and late-planted spring wheat, Triticum aestivum L., were measured in 2 successive years in eastern South Dakota. Greenbug populations in plots generally increased rapidly and peaked when wheat plants were in boot stage. Populations then began a steady decrease until anthesis, at which time they were near zero. The number of seeds per spikelet and the number of spikelets per square metre were consistently significantly negatively correlated with aphid-days, whereas average seed weight was

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Anderson, Randy L. "Timing of Nitrogen Application Affects Downy Brome (Bromus tectorum) Growth in Winter Wheat." Weed Technology 5, no. 3 (September 1991): 582–85. http://dx.doi.org/10.1017/s0890037x00027378.

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Field studies were conducted to determine if varying the time N fertilizer was applied would affect downy brome interference in winter wheat. Five treatments were compared: four broadcast application times of NH4NO3at 56 kg N ha-1during the fallow-crop cycle: 1) during fallow; 2) at planting; 3) during crop dormancy; 4) before winter wheat jointing; and 5) a control where no N was applied. Downy brome was least responsive to N applied during fallow. All N applications during the growing season of winter wheat increased downy brome biomass and culms m-2. Downy brome interference prevented winte

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34

Klemm, Toni, and Renee A. McPherson. "Assessing Decision Timing and Seasonal Climate Forecast Needs of Winter Wheat Producers in the South-Central United States." Journal of Applied Meteorology and Climatology 57, no. 9 (September 2018): 2129–40. http://dx.doi.org/10.1175/jamc-d-17-0246.1.

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AbstractAgricultural decision-making that adapts to climate variability is essential to global food security. Crop production can be severely impacted by drought, flood, and heat, as seen in recent years in parts of the United States. Seasonal climate forecasts can help producers reduce crop losses, but many nationwide, publicly available seasonal forecasts currently lack relevance for agricultural producers, in part because they do not reflect their decision needs. This study examines the seasonal forecast needs of winter wheat producers in the southern Great Plains to understand what climate

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BUTTAR, G. S., H. S. SIDHU, VICKY SINGH, M. L. JAT, R. GUPTA, YADVINDER SINGH, and BALDEV SINGH. "RELAY PLANTING OF WHEAT IN COTTON: AN INNOVATIVE TECHNOLOGY FOR ENHANCING PRODUCTIVITY AND PROFITABILITY OF WHEAT IN COTTON–WHEAT PRODUCTION SYSTEM OF SOUTH ASIA." Experimental Agriculture 49, no. 1 (December 12, 2012): 19–30. http://dx.doi.org/10.1017/s0014479712001032.

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SUMMARYCotton–wheat (CW) is the second most important cropping system after rice–wheat in South Asia. Sowing of wheat after cotton is usually delayed due to late pickings coupled with time needed for seedbed preparation, resulting in low wheat yield. Lack of suitable machinery is a major constraint to direct drilling of wheat into the heavy cotton stubbles. An innovative approach with much promise is the ‘2-wheel tractor-based self-propelled relay seeder’ with seed-cum-fertilizer attachment. On-farm trials were conducted at four locations during 2009–2010 and at 10 locations during 2010–2011 t

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Anderson, R. L. "Cultural Systems Can Reduce Reproductive Potential of Winter Annual Grasses." Weed Technology 11, no. 3 (September 1997): 608–13. http://dx.doi.org/10.1017/s0890037x00045504.

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Feral rye and jointed goatgrass are winter annual grasses that infest winter wheat in the western United States. Currently, no herbicides are available that selectively control these weeds in wheat. Because of this constraint, producers need cultural practices that reduce the seed densities of these two grasses in the soil seedbank. This research shows that applying nitrogen 5 mo before wheat planting and increasing the seeding rate with a tall wheat cultivar reduces seed production per plant of either species by > 40%. However, tall wheat cultivars usually yield less grain than semidwarf c

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Schlatter, Daniel C., Ian Burke, and Timothy C. Paulitz. "Succession of Fungal and Oomycete Communities in Glyphosate-Killed Wheat Roots." Phytopathology® 108, no. 5 (May 2018): 582–94. http://dx.doi.org/10.1094/phyto-06-17-0212-r.

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The successional dynamics of root-colonizing microbes are hypothesized to be critical to displacing fungal pathogens that can proliferate after the use of some herbicides. Applications of glyphosate in particular, which compromises the plant defense system by interfering with the production of aromatic amino acids, are thought to promote a buildup of root pathogens and can result in a “greenbridge” between weeds or volunteers and crop hosts. By planting 2 to 3 weeks after spraying, growers can avoid most negative impacts of the greenbridge by allowing pathogen populations to decline, but with

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SINGH, YADVINDER, and E. G. BEAUCHAMP. "RESPONSE OF WINTER WHEAT TO FALL-APPLIED LARGE UREA GRANULES WITH DICYANDIAMIDE." Canadian Journal of Soil Science 68, no. 1 (February 1, 1988): 133–42. http://dx.doi.org/10.4141/cjss88-012.

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Three field experiments were undertaken over a 2-yr period to compare the response of winter wheat to fall-applied large urea granules containing a nitrification inhibitor (dicyandiamide, DCD) with that of commercial urea granules (prills) applied as a top dressing in the spring. The objective was to determine the effectiveness of large urea granules coupled with DCD in conserving N when applied at planting or one month after planting. Granules of 1, 2 and 3 g urea as well as 2 g urea + DCD were compared with commercial urea prills at an application rate of 80 kg N ha−1. Large urea granules, a

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Batbold, S. "Grain quality of spring wheat varieties." Mongolian Journal of Agricultural Sciences 17, no. 1 (January 3, 2017): 15–20. http://dx.doi.org/10.5564/mjas.v17i1.721.

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Spring wheat is main crop of Mongolia and sown more 90% of agricultural planting area. Total wheat production of Mongolia are increasing gradually, but out of strong and valuable wheat for bread and flour production. Main case of providing sustainable wheat production are develop and widely cultivate strong and valuable wheat varieties resistant to abiotic stresses, with high yield and good quality. Spring wheat varieties by HMW-GS loci were similar, but variety Darkhan-166 /Arvin/ was more than others varieties. Wheat varieties Darkhan-144, KP-547-12, Darkhan-131, Darkhan-144 and KP-561-12 ha

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Hossain, Md Israil, MK Gathala, TP Tiwari, and M. Jahedul Islam. "Development of cost effective small No-till seeder for two wheel tractor in Bangladesh." Bangladesh Journal of Agricultural Research 42, no. 1 (March 29, 2017): 27–34. http://dx.doi.org/10.3329/bjar.v42i1.31970.

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Two wheel tractor (Power tiller) is the common means of soil tillage and other farm operations in Bangladesh due to easy access in fragmented land size with affordable price. A low cost and small robust 2WT driven (12 hp) No-till seeder has been developed with press wheel attachment and inclined plate seed meter assembly in Farm Machinery & Postharvest Process Engineering Division, BARI, Bangladesh for seeding different kinds of seeds. This is a pull type implement hitched at drawbar point of 2WT replacing the regular rotary part. The developed No-till seeder was used in the farmers field

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Redden, R. "The effect of epistasis on chromosome mapping of quantitative characters in wheat. I. Time to spike emergence." Australian Journal of Agricultural Research 42, no. 1 (1991): 1. http://dx.doi.org/10.1071/ar9910001.

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Chromosome mapping of genes affecting time to spike emergence was attempted using the complete series of donor cultivars Hope, Kenya Farmer and Marquis chromosome substitutions into recipient cultivar Chinese Spring, grown at four locations. Substitution line intercrosses and backcrosses were also grown at two dates of planting at one location. The expression of time to spike emergence involved both additive and between chromosome interaction expressions, which were both strongly affected by location. There was a trend for individual additive effects of chromosomes and for the overall between

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Monterroso-Rivas, Alejandro I., Jesús D. Gómez-Díaz, and Antonio R. Arce-Romero. "Soil, Water, and Climate Change Integrated Impact Assessment on Yields." International Journal of Agricultural and Environmental Information Systems 9, no. 2 (April 2018): 20–31. http://dx.doi.org/10.4018/ijaeis.2018040102.

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This article describes the potential yields of maize, wheat and barley which were modeled with climate change, soil degradation and water balance scenarios in central Mexico. Two adaptation measures were also evaluated. To estimate yields the AquaCrop-FAO model was applied. Three study cases were chosen and their climate, soil, phenological and management information was compiled. Once calibrated, the authors tested the response in yields for 28 climate change scenarios: five General Circulation Models, two RCP and three-time horizons. Two adaptation actions were evaluated: changing planting d

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Xu, Feng, Zhaofu Li, Shuyu Zhang, Naitao Huang, Zongyao Quan, Wenmin Zhang, Xiaojun Liu, Xiaosan Jiang, Jianjun Pan, and Alexander V. Prishchepov. "Mapping Winter Wheat with Combinations of Temporally Aggregated Sentinel-2 and Landsat-8 Data in Shandong Province, China." Remote Sensing 12, no. 12 (June 26, 2020): 2065. http://dx.doi.org/10.3390/rs12122065.

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Winter wheat is one of the major cereal crops in China. The spatial distribution of winter wheat planting areas is closely related to food security; however, mapping winter wheat with time-series finer spatial resolution satellite images across large areas is challenging. This paper explores the potential of combining temporally aggregated Landsat-8 OLI and Sentinel-2 MSI data available via the Google Earth Engine (GEE) platform for mapping winter wheat in Shandong Province, China. First, six phenological median composites of Landsat-8 OLI and Sentinel-2 MSI reflectance measures were generated

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Chen, Yu Lun, Wei Qiu, Wei Min Ding, Yi Nian Li, and Yu Tao Liu. "Improvement and Test on Ditcher Chain Transmission System of the Machine for Rice-Wheat Cyclic Planting." Applied Mechanics and Materials 644-650 (September 2014): 853–57. http://dx.doi.org/10.4028/www.scientific.net/amm.644-650.853.

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To solve the problem of irrational assignment on the transmission ratio, redesigned the transmission scheme and optimized the parameters of the rice-wheat cyclic planting machine’s ditcher chain transmission device. Results showed that transmission ratio of the improved system was assigned rationally, all the sprockets not only met the strength requirement, but also had moderate sizes and were easy to be assembled or disassembled, at least 41.57% of the material was saved, not less than 50% of the production cost was reduced; noise level of the optimized chain transmission system was lowered o

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Singh, Samunder, R. K. Malik, R. S. Panwar, and R. S. Balyan. "Influence of Sowing Time on Winter Wild Oat (Avena ludoviciana) Control in Wheat (Triticum aestivum) with Isoproturon." Weed Science 43, no. 3 (September 1995): 370–74. http://dx.doi.org/10.1017/s0043174500081340.

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Field experiments were conducted during the winters of 1987–88 and 1988–89 at Haryana Agricultural University, Hisar, India to evaluate the response of winter wild oat to sowing date and isoproturon application time in wheat. In another experiment, the effect of sowing time on emergence and growth of winter wild oat and wheat sown separately was studied. The treatments that provided more than 75% control of winter wild oat were: isoproturon at 0.75 kg ha−1applied at the 2-leaf stage of winter wild oat; isoproturon 1 kg ha−1applied at the 4-leaf stage of winter wild oat in the November 30 plant

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Young, Frank L., Daniel A. Ball, Donn C. Thill, J. Richard Alldredge, Alex G. Ogg, and Steven S. Seefeldt. "Integrated Weed Management Systems Identified for Jointed Goatgrass (Aegilops cylindrica) in the Pacific Northwest." Weed Technology 24, no. 4 (December 2010): 430–39. http://dx.doi.org/10.1614/wt-d-10-00046.1.

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Jointed goatgrass is an invasive winter annual grass weed that is a particular problem in the low to intermediate rainfall zones of the Pacific Northwest (PNW). For the most part, single-component research has been the focus of previous jointed goatgrass studies. In 1996, an integrated cropping systems study for the management of jointed goatgrass was initiated in Washington, Idaho, and Oregon in the traditional winter wheat (WW)–fallow (F) region of the PNW. The study evaluated eight integrated weed management (IWM) systems that included combinations of either a one-time stubble burn (B) or a

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Cudney, David W., Lowell S. Jordan, Chris J. Corbett, and Warren E. Bendixen. "Developmental Rates of Wild Oats (Avena fatua) and Wheat (Triticum aestivum)." Weed Science 37, no. 4 (July 1989): 521–24. http://dx.doi.org/10.1017/s0043174500072349.

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Prediction of the developmental stages of wheat and wild oats would be useful in order to: 1) correctly time the application of herbicides, and 2) accurately schedule research and cultural operations. The Haun developmental scale which numbers leaf development and describes floral development on the main stem of grasses was found to be suitable for describing the development of semidwarf wheat and wild oats in California. Haun developmental rates of wheat and wild oats were similar. Interference by wheat or wild oats in mixed cultures did not change the developmental rate of either species whe

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Ender, Gary, Abdul Wasay, and Aklitar Mahmood. "Wheat Price Policies in Pakistan: Should there be a Subsidy?" Pakistan Development Review 31, no. 4II (December 1, 1992): 1157–71. http://dx.doi.org/10.30541/v31i4iipp.1157-1171.

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In the 1980s, Pakistan's wheat policies taxed its producers and subsidised its consumers. Moreover, the post-rationing, open-ended system of releases has increased the burden on the government budget. The Government now faces severe shortages of resources at a time when human capital and physical infrastructure must be developed and maintained. This paper reviews wheat price policies in Pakistan and,patterns of wheat consumption over time, and makes recommendations for policy changes. Wheat is the dominant rabi, or winter, crop. However, about half the wheat is grown after cotton. Most of this

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Anosov, S. I., A. S. Surnachev, and K. K. Musinov. "Sugar accumulation in winter wheat crops depending on the sowing dates." Siberian Herald of Agricultural Science 49, no. 2 (May 22, 2019): 27–33. http://dx.doi.org/10.26898/0370-8799-2019-2-3.

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The object of the research was to study the influence of sowing dates on sugar accumulation in different varieties of soft winter wheat. Less winterhardy variety of soft winter wheat Novosibirskaya 2 was compared with more winter-hardy ones Novosibirskaya 3, Novosibirskaya 40 and Krasnoobskaya ozimaya. The research was carried out in 2016-2018 inthe established experimental plot in the foreststeppe of Priobye, theObregion. The predecessor was bare fallow. The planting dates were August 20, September 1, September 10. Weather conditions of the autumn growing season, during which the accumulation

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Laskowska, Halina, Elżbieta Pogroszewska, Wojciech Durlak, and Danuta Kozak. "The effect of bulb planting time and type of mulch on the yield of Allium aflatunense B. Fedtsch." Acta Agrobotanica 65, no. 4 (2012): 117–22. http://dx.doi.org/10.5586/aa.2012.028.

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The aim of the study was to determine the effect of bulb planting time and the type of mulch on the morphological traits of plants and on bulb yield of <em>Allium aflatunense </em>B. Fedtsch. 'Purple Sensation'. Bulbs of 12 cm diameter were used as the study material. The bulbs were planted in plots on three dates: September 15th, October 1st, and October 15th. The plantation was mulched after frost with two types of mulch: composted pine bark and wheat straw. Phenological phases of the plants were observed during the growing season. At the full flowering stage, several observation

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