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Relevant bibliographies by topics / Chitedze Agricultural Research Station

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Journal articles

Academic literature on the topic 'Chitedze Agricultural Research Station'

Author: Grafiati

Published: 4 June 2021

Last updated: 13 February 2022

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Journal articles on the topic "Chitedze Agricultural Research Station"

1

Malunga, Innocent, Joyce J. Lelei, and Wilkson Makumba. "Effect of Mineral Nitrogen and Legume Intercrops on Maize (Zea Mays L.) Nitrogen Uptake, Nutrient Use Efficiency and Yields in Chitedze and Zomba, Malawi." Sustainable Agriculture Research 7, no. 1 (2017): 64. http://dx.doi.org/10.5539/sar.v7n1p64.

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Nitrogen (N) is the most critical plant nutrient. Maize has a high nitrogen demand. Low maize (Zea mays L.), yields in smallholder farms of Malawi, the country’s staple, is attributable to declining N fertility aggravated by the ever increasing price of fertilizer. Little effort has been made to establish the best nitrogen rate in a maize- cowpea and maize-bean intercrop under variable soil conditions as a way of improving production, and was the objective of the current study. Field experiments were conducted at Chitedze Agricultural Research Station in Lilongwe and Makoka Agricultural Research Station in Zomba during the 2016/17 growing season. A split plot layout in a randomized complete block design, with three replicates was used. The main plots were; sole maize, sole bean, sole cowpea, bean/maize and cowpea/maize intercrop systems. The sub plots were N fertilizer rates (0, 52.5, 78.75 and 105 kg N ha-1), applied as urea. The data collected was subjected to analysis of variance using SAS software version 9.3 (SAS Institute Inc.) at P<0.05. Means were separated using Duncan Multiple Range (DMRT) test at 95% significance level. The results showed that application of N increased maize N uptake and grain yield. NUE however decreased with increasing N fertilizer rate.

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2

Lark, R. M., I. S. Ligowe, C. Thierfelder, et al. "Longitudinal analysis of a long-term conservation agriculture experiment in Malawi and lessons for future experimental design." Experimental Agriculture 56, no. 4 (2020): 506–27. http://dx.doi.org/10.1017/s0014479720000125.

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AbstractResilient cropping systems are required to achieve food security in the presence of climate change, and so several long-term conservation agriculture (CA) trials have been established in southern Africa – one of them at the Chitedze Agriculture Research Station in Malawi in 2007. The present study focused on a longitudinal analysis of 10 years of data from the trial to better understand the joint effects of variations between the seasons and particular contrasts among treatments on yield of maize. Of further interest was the variability of treatment responses in time and space and the implications for design of future trials with adequate statistical power. The analysis shows treatment differences of the mean effect which vary according to cropping season. There was a strong treatment effect between rotational treatments and other treatments and a weak effect between intercropping and monocropping. There was no evidence for an overall advantage of systems where residues are retained (in combination with direct seeding or planting basins) over conventional management with respect to maize yield. A season effect was evident although the strong benefit of rotation in El Niño season was also reduced, highlighting the strong interaction between treatment and climatic conditions. The power analysis shows that treatment effects of practically significant magnitude may be unlikely to be detected with just four replicates, as at Chitedze, under either a simple randomised control trial or a factorial experiment. Given logistical and financial constraints, it is important to design trials with fewer treatments but more replicates to gain enough statistical power and to pay attention to the selection of treatments to given an informative outcome.

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3

Subrahmanyam, P. "New Hosts of the Parasitic Flowering Plant, Alectra vogelii, in Malawi." Plant Disease 85, no. 4 (2001): 442. http://dx.doi.org/10.1094/pdis.2001.85.4.442c.

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Alectra vogelii Benth. (Family: Scrophulariaceae) is a vascular hemiparasite of various leguminous crops in Africa, including peanut (Arachis hypogaea), bambara groundnut (Vigna subterranea), cowpea (Vigna unguiculata), common bean (Phaseolus vulgaris), soybean (Glycine max), and mung bean (Vigna radiata) (1). It is a common parasite of peanut in Angola, Burkina Faso, Malawi, Mozambique, Nigeria, Swaziland, Zambia, and Zimbabwe (2). During April and May 2000, A. vogelii was observed parasitizing several wild Arachis species in a field at the Chitedze Agricultural Research Station near Lilongwe, Malawi. These species were part of a germ plasm enhancement program that included A. appressipila (ICRISAT Groundnut Accession number [ICG] 8127), A. batizocoi (ICG 8124), A. benensis (ICG 13215), A. cardenasii (ICG 13164 and 13166), A. correntina (ICG 8918), A. duranensis (ICG 13200), A. helodes (ICG 8955 and 14917), A. hoehnei (ICG 13228), A. magna (ICG 8960), A. pintoi (ICG 13222 and 14914), A. stenosperma (ICG 13172 and 13223), and A. valida (ICG 13230). In addition, A. vogelii was observed on four unidentified Arachis species (ICG 13231, 14875, 14888, and 14907). Parasitized plants were less vigorous and connections between A. vogelii and host plants could be observed by carefully removing the soil in the root zone. Mature A. vogelii plants were 0.3 to 0.5 m and had multiple stems branching at the base. Subsoil plant parts were a deep orange color. Flowers were prominent lemon yellow with horseshoe-shaped stigmata and leaves were light green. This is the first report of A. vogelii parasitizing wild Arachis species. References: (1) C. Parker. Crop Prot. 10:6–22, 1991. (2) P. Subrahmanyam. 1997. Parasitic flowering plants. Pages 70–71 in: Compendium of Peanut Diseases, 2nd Ed. N. Kokalis-Burelle, D. M. Porter, R. Rodriguez-Kabana, D. H. Smith, and P. Subrahmanyam, eds. American Phytopathological Society, St. Paul, MN.

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4

Debertin, David L., and Garnett L. Bradford. "Agricultural Economics Research and The Experiment Station System." Journal of Agricultural and Applied Economics 19, no. 2 (1987): 195–201. http://dx.doi.org/10.1017/s0081305200025462.

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AbstractThis paper discusses the role of agricultural economics research within the land-grant university system. Fundamental differences between research in the biological sciences and the social sciences are delineated. Implications of these differences for experiment station research programs are discussed. Recommendations are made which have potential for enhancing the role of agricultural economics within colleges of agriculture.

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5

EISAWY, GAMAL I. "CONSTRAINTS OF AGRICULTURAL TECHNOLOGY TRANSFER AS PERCEIVED BY RESEARCHERS IN SAKHA AGRICULTURAL RESEARCH STATION." Egyptian Journal of Agricultural Research 98, no. 3 (2020): 1189–215. http://dx.doi.org/10.21608/ejar.2020.177837.

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6

EISAWY, GAMAL I. "CONSTRAINTS OF AGRICULTURAL TECHNOLOGY TRANSFER AS PERCEIVED BY RESEARCHERS IN SAKHA AGRICULTURAL RESEARCH STATION." Egyptian Journal of Agricultural Research 89, no. 3 (2011): 1189–215. http://dx.doi.org/10.21608/ejar.2011.177858.

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7

Munthali, Maggie G., Charles K. K. Gachene, Gudeta W. Sileshi, and Nancy K. Karanja. "Amendment ofTephrosiaImproved Fallows with Inorganic Fertilizers Improves Soil Chemical Properties, N Uptake, and Maize Yield in Malawi." International Journal of Agronomy 2014 (2014): 1–9. http://dx.doi.org/10.1155/2014/902820.

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Maize production in Malawi is limited mainly by low soil N and P. Improved fallows of N-fixing legumes such asTephrosiaandSesbaniaoffer options for improving soil fertility particularly N supply. The interactions ofTephrosiafallows and inorganic fertilizers on soil properties, N uptake, and maize yields were evaluated at Chitedze Research Station in Malawi. The results indicated that the level of organic matter and pH increased in all the treatments except for the control. Total N remained almost unchanged while available P decreased in all plots amended withT. vogeliibut increased inT. candidaplots where inorganic P was applied. Exchangeable K increased in all the plots irrespective of the type of amendment. The interaction of N and P fertilizers withT. vogeliifallows significantly increased the grain yield. The treatment that received 45 kg N ha−1and 20 kg P ha−1produced significantly higher grain yields (6.8 t ha−1) than all the other treatments except where 68 kg N ha−1and 30 kg P ha−1were applied which gave 6.5 t ha−1of maize grain.T. candidafallows alone or in combination with N and P fertilizers did not significantly affect grain yield. However,T. candidafallows alone can raise maize grain yield by 300% over the no-input control. Based on these results we conclude that high quality residues such asT. candidaandT. vogeliican be used as sources of nutrients to improve crop yields and soil fertility in N-limited soils. However, inorganic P fertilizer is needed due to the low soil available P levels.

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8

Bhatt, Rajan, and Paramjit Singh. "Soil Fertility Status of Punjab Agricultural University Regional Research Station Kapurthala." Agricultural Research Journal 57, no. 2 (2020): 260. http://dx.doi.org/10.5958/2395-146x.2020.00039.3.

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9

Connor, Larry J. "A Case Study of Research Prioritization in an Agricultural Experiment Station." Journal of Production Agriculture 4, no. 4 (1991): 635–39. http://dx.doi.org/10.2134/jpa1991.0635.

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10

Richards, G. E., and Martha Davis. "Scientist Involvement in Research Funding at the Arkansas Agricultural Experiment Station." Journal of Production Agriculture 3, no. 4 (1990): 602–5. http://dx.doi.org/10.2134/jpa1990.0602.

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