全膜覆土穴播小麦养分积累规律及其水分利用效率研究

在全膜覆土穴播种植和露地穴播种植方式下,研究了不同肥料处理对小麦养分积累规律及水分利用效率的影响.结果表明:全膜覆土穴播种植方式下,OPT(N 150 kg·hm-2,P2O5 120 kg·hm,K 84 kg·bm-2)和CK(不施肥)处理的小麦各生育期N、P、K的吸收量分别高于露地种植,各施肥处理小麦不同生育期全...

Study on nutrient absorption and soil water content to film-mulched soil and bunch-seeded wheat

The experiment investigated the effect of adopting different fertilizer treatments to the law of nutrients accumulation and water use efficiency of wheat,under the two different cultivation modes conditions,such as film-mulched soil and bunch-seeded wheat,and unmulched and bunch-seeded.Results showed that adopting OPT(N 150 kg·hm-2,P2O5 120 kg·hm-2,K 84 kg·hm-2) and CK(no fertilizing) treatment for the growth of wheat suction under soil over film-mulched and bunch-seeded,which was superior than the unmulched and bunch-seeded mode on N,P,K absorption,and the dry matter accumulation in different growth period of fertilizer processing wheat was higher than the unmulched and bunch-seeded mode,OPT>FP(N 150 kg·hm-2,P2O5 105 kg·hm-2)>CK.Compared with the unmulched and bunch-seeded that the soil over film-mulched and bunch-seeded of wheat had average increased 23.2% on the grain yield.Water using efficiency of three fertilizer processing OPT,FP or CK was significantly higher than the unmulched and bunch-seeded in the soil over film-mulched and bunch-seeded of wheat method.Compared with the unmulched and bunch-seeded,water using efficiency had been improved by 21.7% ~42.6%.The fertilizer processing OPT was adapted in the soil over film-mulched and bunch-seeded of wheat method.