| The natural conditions of drought and water shortage have been restricting the development of Xinjiang agriculture,and the drip irrigation model is the inevitable choice of Xinjiang agriculture development.In order to make the crops more resistant to lodging and higher yield,dwarf and other chemical control methods have been introduced in recent years,but the traditional application method is still used,which is not conducive to efficient production.Therefore,to explore the northern Xinjiang area drip irrigation winter wheat dwarf The effects of spraying and applying different dosage of dwarfin on lodging resistance and yield of winter wheat were studied in this experiment:D0(0 ml/hm2),D 1(1500 ml/hm2),D2(3000 ml/hm2),D3(4500 ml/hm2),D4(6000 ml/hm2),CK(Sprays 3000 ml/hm2).1.A certain amount of dwarf can prolong the growth period of winter wheat before flowering,shorten the growth period after flowering,and play a positive role in controlling seedling situation and preventing the late ripening of green and green.The basal internodes of winter wheat were significantly increased by dropping dwarfin,with the largest D3 of 1 and 2 nodes thickened by 26.00%and 20.55%respectively compared with the basal internodes of D0 wheat.The height of the center of gravity decreased with the increase of the amount of drip.The inhibition effect of the drop on the height of the center of gravity was better than that of the drop.At the same time,the dry matter accumulation of winter wheat could be increased by applying dwarfin.2.The yield of winter wheat under D2 treatment reached the highest in 2017-2018,which was 25.57%and 17.84%higher than that under CK treatment and D0 treatment,respectively.The yield under D3 treatment reached the peak in 2018-2019,which was 6.51%and 12.21%higher than that of CK treatment and D0 treatment,respectively.As a result,the application of dwarf hormone 3000-4500 ml/hm2,during jointing of winter wheat could improve yield,lodging resistance and efficiency. |
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