论文部分内容阅读
辽宁省甜菜育种站地膜覆盖栽培甜菜,平均亩产4230公斤,比露地甜菜每亩增产54.4％,增糖1.23％,增收82.60元。其增产增糖的主要原因是覆膜后提高土壤温度和孔隙度,保持水分,促进微生物活动,速效养分增加。协调土壤中水、肥、气、热状况,播后比露地栽培的早出苗9—10天,提前10—15天进入繁茂期。几年来的试验示范推广,总结出甜菜地膜覆盖栽培技术措施有以下几个方面。
Sugar beet breeding station in Liaoning Province mulching cultivation of sugar beet, the average yield 4230 kilograms, more than the open beet yield 54.4% per mu, 1.23% increase in sugar, an increase of 82.60 yuan. The main reason for the increase in sugar production is that after the filming, the soil temperature and the porosity are increased, the water content is maintained, the microbial activity is promoted, and the available nutrient is increased. Coordination of soil water, fertilizer, gas and heat conditions, after sowing than the open-field cultivation of early emergence 9-10 days, 10-15 days in advance into the flourishing period. Over the past few years the pilot demonstration and promotion, concluded that sugar beet mulching cultivation techniques and measures in the following areas.