[Effects of no-tillage plus inter-planting and remaining straw on the field on cropland eco-environment and wheat growth].
The studies showed that under no-tillage plus inter-planting rice and wheat, the height of rice stubble remained on the field significantly affected light transmission rate, with an optimal height of 20-30 cm. No-tillage and straw-remaining decreased soil temperature at noon in sunny days, but slightly increased it in the morning and evening, led to a less diurnal difference of soil temperature. The average diurnal soil temperature under no-tillage was higher in cloudy but lower in sunny days. Under no-tillage and straw-remaining, both the bulk density and the penetration resistance of topsoil increased, but no apparent adverse effect of them was observed on wheat growth. Under no-tillage, soil water content was higher under drought condition, and soil permeability after irrigation was better, which was propitious to the wheat growth. Straw-remaining significantly inhibited weeds, but led to the decrease of basic seedlings and enhanced the damage of freezing. Under no-tillage plus inter-planting, the individuals of effective ears decreased, while the kilo-grain weight increased. The grain yield was slightly but not significantly low under no-tillage plus inter-planting.
Liu
Shiping
S
College of Agriculture, Yangzhou University, Yangzhou 225009, China. lsp123@yzcn.net
Zhang
Hongcheng
H
Dai
Qigen
Q
Huo
Zhongyang
Z
Xu
Ke
K
Ruan
Huifang
H
D018533:Biomass; D018556:Crops, Agricultural / Q000254:growth & development*; D017753:Ecosystem; D018547:Plant Stems; D012987:Soil / Q000032:analysis; D014908:Triticum / Q000254:growth & development*
D012987:Soil