小麦垄作栽培技术的生态生理效应

Eco-physiological Effect of Wheat Bed- planting Culture Techniques

省内不同生态类型区多点试验结果表明，与传统平作相比，小麦垄作栽培改大水漫灌为小水沟内渗灌，节水４０％，孔隙度提高，根际土壤容重降低；垄作栽培将土壤表面由平面型转变为波浪型，增加了土壤表面积和光的截获量，改善了通风透光条件，有利于植株的个体发育，增强其抗病及抗倒性能；垄作栽培有利于充分发挥小麦的边行优势，提高籽粒灌浆速率，千粒重增加２ｇ以上，增产１０％左右。

The results from several locations with different eco-environments in Shandong Province showed that,compared with the conventional planting system,the advantages of the bed-planting culture are as follows First,it can not only save irrigation water by 40%,but also significantly improve the soil physical property because of changing the flooding irrigation into small-canal irrigation Second,the bed-planting system can greatly improve the lodging-resistance,disease-resistance of wheat and the climate conditions of wheat canopy,such as increasing sunlight reception because of changing flat-planting to bed-planting Finally,the bed-planting system is also beneficial to demonstrating the advantage from bordering-wheat For example,it makes the grain weight raise by 5% and the yield by 10%