旱作条件下不同覆盖栽培方式对甘蔗产量的影响试验

Effects of different cover cultivation models on yield of sugarcane in upland conditions

研究了新植蔗旱作条件下6种不同覆盖栽培方式对甘蔗产量及其构成要素的影响。结果表明,覆盖栽培对甘蔗产量有显著的促进作用,前期主要表现为提高出苗量和出苗后的分蘖量,中后期表现为促进株高的生长和有效茎数量的增加和单茎产量的提高。3种覆盖栽培方式中,横直深松蔗叶覆盖栽培的甘蔗产量优于单向深松浅耕和常规犁耕蔗叶覆盖栽培方式,生产上建议首选横直深松蔗叶覆盖栽培方式。

The effects of six different cover cultivation models on the yield and its constituent elements of plant crop of sugarcane were studied. The results showed that cover cultivation could increase the sugarcane yield signif icantly. In the early stage, cover cultivation was mainly to increase the amount of shoot emergence and tillering, and then to promote the growth of plant height and the increase of millable stalks and single stalk weight. Of three cover cultivation models, the yield of sugarcane cultivated by deep and fine plough model with sugarcane leaf coverage was higher than that of other two models, so it should be recommended in the sugarcane production.