摘要： 1986—1987年用长效氮肥CDU对伊利莎白甜瓜进行施肥试验,其增产效果显著,在砂壤质土壤上,一次亩施折合纯氮12公斤的CDU作基肥,比施用等氮量尿素增产10-17%,前期瓜产量提高80%以上,经济效益良好.同时研究确认CDU有抑制土壤真菌,促进放线菌、细菌和自生固氮菌的数量增加,有利于作物的健壮生长.
关键词:
长效氮肥CDU,
甜瓜
Abstract: Test results of 1986-1987 indicated that the long-effect nitrogen fertilizer CDU from Japan had increased the yield of muskmelon significantly. In loam sandy soils, application of CDU convert to pure N 12kg/mu as basic fertilizer increased yield 10-l7% higher than that the equal amount of normal urea, and that the ratio of early maturing melons rose upto 80%, so there was a good economic effect. The results also showed that CDU could retard the growth of fungi, promote the growth of actinomyces, bacteria, azotobactria, and accelerate tne growth of the plant.
Key words:
Long-effect nitrogen fertilizer CDU,
Muskmelon
吴多三, 计惠娟, 李文田. 长效氮肥CDU对伊利莎白甜瓜的增产效应[J]. 华北农学报, 1989, 4(1): 116-119. doi: 10.3321/j.issn:1000-7091.1989.01.020.
Wu Duosan, Ji Huijuan, Li Wentian. The Yield-Increasing Effect of Long Effect Nitrogen Feftilizer CDU on Elizabeth Muskmelon[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1989, 4(1): 116-119. doi: 10.3321/j.issn:1000-7091.1989.01.020.