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首页> 外文期刊>International journal of soil science >Integrated Nutrient Management to Enhance On-Farm Productivity of Rain Fed Maize in India
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Integrated Nutrient Management to Enhance On-Farm Productivity of Rain Fed Maize in India

机译：集成营养管理，以提高印度雨养玉米的农场生产力

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On-farm trials were conducted in the central Karnataka of India, over 3 years, with the objectives of quantifying the effects of applying balanced nutrition to rain fed maize with regard to yield response, plant nutrition, profitability and rain water use efficiency under multi-nutrient deficient conditions. Maize grain yield was significantly increased by the soil application of Farmers? Inputs (FI) plus additional quantities of nitrogen and phosphorus (NP), FI+sulfur, boron and zinc (SBZn) and FI+NP+SBZn treatments compared to maize receiving no fertilizer inputs or FI. Optimizing limiting soil nutrients significantly (p<0.05) enhanced grain productivity by an average of 67.1% and stover yields by 76.6% under farm situations. Also the treatment NP+SBZn over the FI treatment significantly increased the uptake of N, P, K, S and Zn in the grain and above-ground maize parts. Use of SBZn, along with the FI?s enhanced partial factor productivity and agronomic efficiency by 202 and 96.8%, respectively. However, the benefit: cost ratio (2.9: 1) of SBZn treatment was not encouraging and it was most lucrative (6.4: 1) in FI+NP treatment. Maize fertilized with balanced nutrition (FI+NP+SBZn) showed greater rain water use efficiency (almost increased by 50%), over the farmer?s practice of fertilization. Integrated application of additional quantities of NP and correcting SBZn deficiencies in rain fed maize are critical for not only to enhance the productivity and profitability but also to maintain sustainable soil resource base.
机译：在印度中部卡纳塔克邦进行了为期3年的农场试验，目的是量化在多雨条件下对雨养玉米施用均衡营养对产量响应，植物营养，获利能力和雨水利用效率的影响。营养不足的条件。农民施用土壤后玉米产量显着增加。与未施用肥料或玉米的玉米相比，投入（FI）加上额外数量的氮和磷（NP），FI +硫，硼和锌（SBZn）以及FI + NP + SBZn处理。在农场条件下，优化限制土壤养分含量可显着提高（p <0.05），平均可使谷物生产力提高67.1％，秸秆产量提高76.6％。同样，与FI处理相比，NP + SBZn处理显着提高了谷物和地上玉米部分对N，P，K，S和Zn的吸收。 SBZn的使用以及FI？的部分因子生产率和农艺效率分别提高了202％和96.8％。但是，SBZn处理的收益：成本比（2.9：1）并不令人鼓舞，在FI + NP处理中收益最高（6.4：1）。与农民的施肥习惯相比，用均衡营养（FI + NP + SBZn）施肥的玉米显示出更高的雨水利用效率（几乎提高了50％）。在雨养玉米中综合应用更多数量的NP和纠正SBZn缺乏对于提高生产力和利润率以及维持可持续的土壤资源基础至关重要。

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