不同耕作方式对冬小麦产量及水分利用状况的影响

为探讨在冀中南山前平原小麦-玉米两熟区发展保护性耕作技术的可行性，于2003—2004年度，在藁城廉州镇，就免耕、深松耕、旋耕3种不同的耕作方式对冬小麦作物产量和田间土壤水分变化状况的关系进行了试验研究。通过对不同耕作方式下，小麦生育期田间苗情和成熟期产量性状调查结合定期的土壤水分测定分析，探明了不同耕作方式对小麦产量和水分利用状况的影响。结果表明，免耕和深松耕的耕作方式，有利于改善土体结构，增加土壤蓄水保墒性能，提高水分利用效率，节水、节本、增产增效明显，发展前景广阔。

Effect of Different Tillage Techniques on Yield and Water Utilization in Winter Wheat

In order to make clear the possibility to extend conservation tillage in the middle and south area of Hebei Province, a field experiment including three tillage treatments, namely, no-tillage, deep loosing and rotary tillage, were conducted in Lian Zhou, Gao Cheng in 2003-2004.This article analyzed relationship between wheat yield, yield components and water content of soil under different Tillage Techniques. The results showed that no tillage and deep loosing could improve soil structure and water holding capacity, and then increase water use efficiency and yield. So it is necessary and prospective to extend the conservation tillage techniques-no tillage and deep loosing.