搜索结果: 1-15 共查到“作物学 fertilizers”相关记录21条 . 查询时间(0.099 秒)
Complementary effects of organic and mineral fertilizers on maize production in the smallholder farms of Meru South District, Kenya
Soil Fertility Organic Carbon Total Nitrogen Benefit Cost Ratio
2013/2/28
Low soil fertility is a major constraint to maize production in the small holder farms of Meru South District. This is mainly attributed to the mining of nutrients due to cropping without external add...
Soybean seed protein, oil, and fatty acids are altered by S and S + N fertilizers under irrigated or non-irrigated environments
Fatty Acids Nutrition Oil Protein Seed Composition Soybean
2013/3/5
Information on the effect of sulfur (S) or sulfur+nitrogen (S + N) on soybean seed composition is scarce. Thus, the objective of this study was to investigate the effects of S, and S + N fertilizers o...
Response of roselle (Hibiscus sabdariffa L.) to rates of inorganic and farmyard fertilizers in the Sudan savanna ecological zone of Nigeria
Roselle manure nitrogen fertilizer calyx yield pods/plant and seeds/pod
2011/1/12
Field trials conducted in two rainy seasons at the Usmanu Danfodiyu University, Sokoto, Nigeria, were used to investigate the response of Roselle to organic manure (2.5, 5.0 and 7.5 tons/ha cow dung) ...
Mulching and synergistic use of organic and chemical fertilizers enhances the yield, nutrient uptake and water use efficiency of sorghum
Integrated nutrient management mulching
2011/1/12
Crop yields in arid lands are generally low and highly variable because of sparse and erratic precipitation leading to water stress. A greenhouse study was conducted to determine the effect of integra...
Comparative Studies of Application Both Mineral and Bio-potassium Fertilizers on the Growth, Yield and Quality of Potato Plant
Potato (Solanum tuberosum L.) mineral-K fertilizer bio-K fertilizer vegetative growth
2010/11/15
Two field experiments were conducted during the two successive winter seasons of 2006 and
2007 at the experimental station of the Agriculture Research Center (ARC), Kafr El–Zayat, El–Gharbia Governor...
EFFECT OF ARTIFICIAL FERTILIZERS ON MITOTIC INDEX AND CHROMOSOME BEHAVIOUR IN VICIA HYBRIDA L.
Vicia hybrida ammonium sulphate potassium sulphate mitosis chromosomes Turkey
2009/9/29
This study was conducted in Suleyman Demirel University, Arts and Sciences
Faculty, Department of Biology, Isparta, Turkey during 2008 to determine
whether ammonium sulphate [(NH4)2SO4] and potassiu...
Effects of Different Rhizosphere Sizes on the Growth, Distribution Patterns and Utilization of Nitrogen Fertilizers of Different Varieties of Rice Plants(Oryza Sativa L.)on the Same Hill
Inter-hills competition Oryza Sativa L Partition of Nitrogen
2009/8/6
In order to clarify the inter-hill competition at the maturing stage. Using the tracer 15N method. The growth characteristics of rice plants (Oryza Sativa L., cv. Suweon no. 258 and TKM-6) grown in po...
Relationships between Vascular Bundles of Panicle Neck Internode and Characters of Head under Different Planting Densities and Nitrogen Fertilizers Applied in Oryza sativa L.
Fertilizer Grains Large vascular bundles 0ryza sativa L Panicle neck internode
2009/7/28
Investigations were carried out on the characters of rachilets, grains and grain weight per panicle of the growing rice plant cv. Shimokita under different planting density and nitrogen fertilizer no...
Effects of Organic and Inorganic Fertilizers on the Growth of Rice Plants under Different Light Intensities
Growth Inorganic fertilizer Light intensity Organic fertilizer Rice plant
2009/7/16
Effects of organic fertilizer (liquid concentrated protein extract ; N : 9.2%, P2O5 : 2.4%, K2O : 3.1%) and inorganic fertilizer on the growth of rice plants were studied under various light intensiti...
The effect of soil pH and natural fertilizers on the productivity of different mixtures and nitrogen accumulation in plant biomass
soil pH natural fertilizers productivity N accumulation
2010/1/19
Research aimed at comparing the productivity and nitrogen (N) accumulation in plant
biomass of different mixtures and permanent meadow grown in soils with different pH was
performed. Most of the N...
Yield and quality response of tea plant to fertilizers
Tea fertilizers micronutrients yield
2010/9/10
To improve quality and yield of Iranian tea, this experiment was projected and effects of nitrogen (N), potassium (K), magnesium (Mg) and micronutrients (Zn and Cu) fertilizers was studied on yield an...
Evaluation of slow-release nitrogen and potassium fertilizers for cotton production
Cotton nitrogen potassium Meister programmed release fertilizer slow-release fertilizer
2009/3/4
Current nitrogen (N) and potassium (K) fertilization involves the use of conventional fertilizer materials with little information on the use of slow release materials. The objectives of this re...
Response of date palm (Phoenix dactylifera) seedlings to organic manure, N and K fertilizers in polybag nursery
Date palm inorganic fertilizers organic manure leaf nutrients
2010/9/10
A trial was conducted at NIFOR’s sub-station, Dutse, Jigawa State, Nigeria to investigate the influence of soil fertility amendment using inorganic fertilizers and organic manure on date palm seedling...
Effect of Phosphorus Fertilizers and Application Methods on the Yield of Wheat Grown Under Dryland Conditions
Phosphorus Fertilizers Application Methods Yield Wheat Grown Dryland Conditions
2009/1/15
This study was conducted to investigate the efficiency of diammonium phosphate (DAP) and triple superphosphate (TSP) as phosphorus (P) sources and the effect of fertilizer application methods on the ...
Cotton Lint Yield and Quality As Affected by Applications of N, P, and K Fertilizers
Cotton Lint Yield Quality Affected Applications N, P, K Fertilizers
2008/12/15
Nitrogen (N), phosphorus (P), and potassium (K) fertilizer use in cotton production is important. Data from a long-term experiment initiated in 1972 were used to evaluate effects of N, P, and K fertil...