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在河南省潮土上设置田间试验。结果表明,K型杂种小麦亩产660kg左右,吸收N28.47kg、P2O25.85kg、K2O22.16kg,每生产100kg籽实需N4.29kg、P2O50.88kg、K2O3.33kg;其干物质积累高峰在孕穗灌浆期,吸氧高峰在孕穗-灌浆期,吸磷、钾高峰在孕穗期;K型杂种小麦经济产量系数为27.11%,谷草比为1∶2.69。
Set up a field test on the Chao soil in Henan Province. The results showed that the yield of K-type hybrid wheat per mu was 660kg, N28.47kg, P2O25.85kg and K2O22.16kg, respectively. N4.29kg, P2O50.88kg and K2O3.33kg were needed for the production of 100kg seed. During the booting-filling stage, the peak of phosphorus uptake and potassium was at the booting stage. The economic yield coefficient of K-type hybrid wheat was 27.11%, and the ratio of grain to straw was 1: 2.69.