Effect of Different Nitrogen and Potassium Fertilizer Operation on Dry Material Accumulation and Yield of Super High -Yield Maize

doi:10.7668/hbnxb.2009.S1.042

Abstract

Abstract: Take Xianyu 335 as tries the material and yield of super high -yield as the goal,effect of different nitrogenand potassium fertilizer operation on dry weight and yield of maize was studied.The results showed that :the dry materialand yield was influenced strikingly in different nitrogen and potassium fertilizer operation,the base between nitrogenousfertilizer 150 kg/ha and potassium fertilizer 56.25 kg/ha,the topdressing between nitrogenous fertilizer 450 kg/haand the potassium fertilizer 168.75 kg/ha was advantageous to the dry material accumulate ;The base between nitrogenousfertilizer 300 kg/ha and potassium fertilizer 112.5 kg/ha,the topdressing between nitrogenous fertilizer 300 kg/ha andpotassium fertilizer 112.5 kg/ha operation way yield and the economical coefficient was highest,respectively was17 246.85 kg/ha and 0.52.

Key words: Superhigh-yieldmaize, Nitrogenandpotassiumfertilizeroperation, Drymatteraccumulation, Yield

CLC Number:

S143

YAOXiao-xu, YUHai-qiu, CAOMin-jian. Effect of Different Nitrogen and Potassium Fertilizer Operation on Dry Material Accumulation and Yield of Super High -Yield Maize[J]. ACTA AGRICULTURAE BOREALI-SINICA, doi: 10.7668/hbnxb.2009.S1.042.

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