论文部分内容阅读
芦花台园林场位于贺兰山麓,土壤属淡灰钙土,有机质含重低,肥力较差。1961年开荒种植小麦,产量一直很低。1980年采取播前施肥的方法,小麦单产达282斤,比1979年提高52％。1981年单产增加到300斤,1982年达492斤,其中350亩达552斤。单产迅速提高的原因,除根据本场具体条件紧抓各项增产措施外,突出的是抓了播前施肥这个关键,保证前期有足够的养分,分蘖、拔节和孕穗阶段发育良好。根据几年来的实践,播前施肥(混合化肥)占总施肥量的70％,旱追肥(尿素)占20％,灌头水撒施追肥(尿素)占10％,可以满足小麦生长期各阶段的需要。具体作法是:春耕开始时,先耙地
Luhuatai garden is located in Helan foothills, the soil is light gray soil, organic matter with low weight, poor fertility. In 1961 pioneers planted wheat, production has been low. In 1980, before sowing fertilizers, the yield of wheat reached 282 kg, an increase of 52% over 1979. In 1981, the yield increased to 300 kg and 492 kg in 1982, of which, 350 mu amounted to 552 kg. In addition to the specific conditions of the field to grasp the stimulation of production, the key is to grasp the key to sowing before fertilization, to ensure adequate nutrients in the early stage, tillering, jointing and booting stage well-developed. According to several years of practice, before sowing fertilizers (mixed fertilizers) accounted for 70% of the total amount of fertilizer, dry top dressing (urea) accounted for 20%, topdressing topdressing (urea) accounted for 10%, to meet the wheat growth stages Need. Specific practices are: spring plowing, the first rake