摘要
在河北黑龙港地区主要土壤类型（壤质潮土）上进行了连续４年的耕作与秸秆还田配合的小麦田间试验，试图探讨一种适合当地自然特点的节水管理模式。结果表明，不同耕作方式对土壤保水性没有实质性影响，与秸秆直接翻入土壤和无秸秆还田者相比，（１）整株秸秆覆盖显著（Ｐ＜０．０５）提高了土壤温度，缩短了出苗时间；（２）直立作物残茬和整株秸秆覆盖均能显著（Ｐ＜０．０５）增加土壤的含水量，进而提高了小麦对干热风的抵抗能力。
A sticcessive 4-Year field experiment of tillage in matching with wheatstraw recvcle was carried out in thc major soil type(wet loamy soil)in Hilunggang regionin Hebei with the purpose to search for the water-saving management model suitable tolocal natural conditions.The results indicated that different tillage patterns had no actu-al effect upon soil moisture conservation.In comparision comparison of wheat straws directly plowed into soil with no wheat straw recyclings,(1)full- straw mulching increasedsoil temperature(P<0. 05)significantly and shortened the time of wheat seedling emer-gence;and(2)the standing- stubble and full-straw mulching increased soil moisttire con-siderably(P<0. 05)thereby further improving wheat ability to resist dry and hot wind.
出处
《干旱地区农业研究》
CSCD
北大核心
1996年第2期1-4,共4页
Agricultural Research in the Arid Areas
基金
中国
加拿大合作研究"河北旱地农业"项目
关键词
小麦
免耕
直立作物残茬
湿度
温度
麦田
soil no-till
standing-stubble
full-straw mulching
soil humidity
soiltemperature
water-saving management model
