河南农业科学Issue(3)：23-25,44,4.DOI:10.15933/j.cnki.1004-3268.2015.03.006
不同播种方式下夏玉米机械化精量施肥技术研究
Study on the Mechanization Technology of Summer Maize Precision Sowing and Fertilizing under Different Sowing Methods
摘要
Abstract
The aim of this study was to explore the key technological index of summer maize seeding and fertilizing simultaneously under different planting models. Zhengdan 958 was used as the experimental va-riety,and different planting models were designed, i. e. two sowing patterns ( adjacent stubble of direct seeding and rotary stubble,two sowing depths (5 cm and 10 cm) and two fertilizing distances(15 cm and 20 cm) ,to study the effects of above treatments on the growth and development,dry matter accumulation and grain yield of maize. The results showed that the pattern of adjacent stubble of direct seeding,10 cm sowing depth and 20 cm fertilization horizontal distance got the highest yield ( 10 987 . 6 kg/ha ) , which was 14. 9% higher than that of the pattern with direct seeding,5 cm sowing depth and 15 cm fertilization horizontal distance,reaching to a significant level. This might be due to the higher dry matter accumulation in middle and later period (319. 12 g),and the relatively high leaf area index during whole growth peri-od. The soil water volume of rotary tillage stubble was higher than that of direct seeding of adjacent stub-ble in seedling period. The water volume in 0—30 cm soil was higher in 20 cm fertilization horizontal dis-tance than in 15 cm one. The combination of direct seeding of adjacent stubble,10 cm sowing depth and 20 cm fertilization horizontal distance was the best model for mechanized precise fertilization technology.关键词
夏玉米/播种方式/机械化/施肥技术/产量/叶面积指数Key words
summer maize/sowing patterns/mechanization/fertilization technique/yield/leaf area in-dex分类
农业科技引用本文复制引用
乔江方,刘京宝,黄璐,朱卫红,夏来坤,李川,乔辉..不同播种方式下夏玉米机械化精量施肥技术研究[J].河南农业科学,2015,(3):23-25,44,4.基金项目
河南省科技厅重点攻关项目(132102110070) （132102110070）
公益性行业(农业)科研专项(201203033) （农业）
十二五科技支撑计划重大项目(2013BAD07B07) （2013BAD07B07）
