Study on the Mechanization Technology of Summer Maize Precision Sowing and Fertilizing under Different Sowing Methods
QIAO Jiangfang
LIU Jingbao
HUANG Lu
ZHU Weihong
XIA Laikun
LI Chuan
QIAO Hui
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.
Keywords：summer maizesowing patternsmechanizationfertilization techniqueyieldleaf area in-dex
Publication Date：2015-03-02
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：4( 23-25,44 )