有机肥部分替代对小麦产量和效益的影响OA

To explore the effects of different ratios of organic fertilizer replacing chemical fertilizer on winter wheat yield and benefits,Jimai 22 was used as the material,5 treatments were set up:conventional fertilization(CK),optimized fertilization(T1),organic-inorganic fertilizer combined with 10%of alternative chemical fertilizer(T2),organic-inorganic fertilizer combined with 20%of alternative chemical fertilizer(T3),and organic-inorganic fertilizer combined with 30%of alternative chemical fertilizer(T4).The biological characteristics,yield,and economic benefits of wheat in each treatment were analyzed.The results showed that the plant height of T1-T4 treatments ranged from 71.3-73.4 cm,the number of tillers per plant ranged from 4.8-6.8,the effective number of wheat ears ranged from 5.745 million to 6.255 million ears/hm2,and the thousand grain weight ranged from 40.9-45.5 g,all of which were superior to CK.The yield of each treatment ranged from 7 859.55-9 317.55 kg/hm2,with T3 treatment having the highest yield.In terms of economic benefits,the net income of each treatment ranged from 17 068.85 to 19 062.75 yuan/hm2,with T3 and T4 treatments increasing by 6.89%,5.87%compared to CK.Taking into account factors such as yield and benefits,the suitable proportion of organic fertilizer replacing chemical fertilizer for winter wheat is 20%.