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Growth and yield of rice-wheat in response to integrated use of organic and inorganic N sources

机译：综合利用有机和无机氮源，稻麦的生长和产量

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This study was conducted to evaluate the effect of integrated use of organic and inorganic nitrogen (N) sources on rice-wheat yield and yield parameters, soil organic carbon content and nitrate leaching. Fourteen treatments viz: control (No NPK), 100% N through fertilizer (Recommended NPK), 100% N through FM, 100% N through press mud, 100% N through poultry litter, 75% N through fertilizer + 25% N through FM, 75% N through fertilizer + 25% N through press mud, 75% N through fertilizer + 25% N through poultry litter, 50% N through fertilizer + 50% N through FM, 50% N through fertilizer + 50% N through press mud, 50% N th ro ugh f ertilizer + 50% N th roug h poul try l itter, 2 5% N through fert ilizer + 75% N throu gh FM, 25% N through fertilizer + 75 % N th roug h p ress mu d, 25% N throug h fertilizer + 75% N throug h pou ltry l itter were tested. All o rgan ic m anures were well m ixed in soil befo re fi lling the pot s. Th e resu lts ind icated that maximum pla nt h eigh t, num ber o f till ers, num ber of grains p er sp ike/panicle, 1000 g ra ins weig ht and pa ddy/g ra in yield was obta ined in trea tmen t where 7 5% N through ch emi cal ferti lizers and 2 5% N through p oultry lit ter was appli ed. The hig hest soil org anic ca rb on a fter th e h arvest o f rice a nd whea t was obt ained in treatm ent where 1 00% N was app lied th roug h farm manure while soil nit rate was maximum in trea tment where 7 5 % N th rou gh chemical fertilizers an d 2 5% N thro ugh pou ltry l itter wa s appl ied. The study conjectu red t hat com binatio n of chemica l f ertilizers an d p oultry lit ter (7 5:25) pro ved best in com pariso n with o ther integrations and sole ap plications.
机译：进行这项研究以评估有机和无机氮（N）源综合利用对稻麦产量和产量参数，土壤有机碳含量和硝酸盐淋失的影响。十四种处理方法：对照（无氮磷钾），100％氮肥（推荐氮磷钾），100％氮肥通过FM，100％氮肥通过压泥，100％氮肥通过家禽垫料，75％氮肥通过肥料+ 25％氮肥通过FM，通过肥料施用的氮含量为75％+通过压泥处理的氮含量为25％，通过肥料施用的氮含量为75％+通过家禽垫料施用的氮含量为25％，通过肥料施用的氮含量为50％+通过FM施用的氮含量为50％，通过肥料施用的50％氮含量+通过肥料施用的50％压泥，50％的氮肥+ 50％的氮肥，2％的氮肥通过肥料+ 75％的氮通过FM，25％的氮通过肥料+ 75％的氮例如，对25％氮肥和75％氮肥进行了测试。将所有有机肥料在盆栽后均已很好地混入土壤中。结果表明，最大皮重，籽粒数/穗粒数，穗粒数/穗数，千粒重和稻米/粒的最大产量已按吨计在其中施用了7％5％的氮（通过化学肥料）和2％5％的N（通过肥料）。施用水稻后，首先施用了水稻的最大土壤有机肥，其中施用了1 00％的氮，而处理的土壤硝态率最高的是7施用了5％的化学肥料和2 5％的氮肥。这项研究对化学肥料和家禽粪便（7 5:25）的组合进行了比较，证明了其与其他集成度和唯一用途的最佳比较。

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