论文部分内容阅读
1.施氮、磷、钾肥对向日葵的增产作用徐大屯农科站在后张屯生产队试验,每亩单施猪粪8,000斤做底肥的向日葵籽千粒重55克,亩产120.6斤;每亩加施硫酸铵40斤做口肥的千粒重55.2克,亩产145.6斤,比单施底肥的增产20%;每亩加施过磷酸钙40斤做口肥的千粒重55.7克;亩产182.6斤,比单施底肥的增产51.7%;每亩加施草木灰100斤做口肥的千粒重62克,亩产191.4斤,比单施底肥增产
1. Nitrogen, phosphorus and potassium fertilizer on the sunflower yield Xu Toutun agricultural station stationed in the post-Zhang Tun production team test, per mu alone pig manure 8,000 kg to do the basal fertilizer sunflower seed grain weight 55 grams, 120.6 kg per mu; per acre plus Ammonium sulfate 40 pounds of fat to make one thousand grain weight 55.2 grams, 145.6 kg per mu, than the sole fertilizer yield 20%; per acre plus calcium phosphate 40 kg do fat weight thousand grain weight 55.7 grams; 182.6 kg per mu, than A single application of base fertilizer 51.7% increase; 100 kg per acre plus grass wood ash to do the weight of one thousand grain weight 62 grams, 191.4 pounds per mu,