燕麦与不同作物间作群体效应研究

Studies on Intercropping Effects of Different Crops and Oats

试验于2006年在呼和浩特市园艺科技试验中心进行,研究燕麦在内蒙古地区与其他作物间作的生态效应。用 ZF—77型照度计测定光照强度变化,结果表明:科多8号、蒙农青饲一号、农垦四号的间作群体中部和基部的光照强度和透光率均大于单作;马铃薯间作群体中部和基部光照强度和透光率比单作分别降低了40.6%、66.3%和26.3%、25.4%。在作物生育期间用 CRB 型电子测温仪测定5、10、15、20、25、30cm 土层地温变化,5～30cm土层地温从上到下呈递减趋势,同一土层温度均为间作高于单作;全生育期间作群体5cm 土层平均地温比单作提高了0.7～9.0℃。收获后,用凯氏定氮法、索氏浸提法测定粗蛋白和粗脂肪含量,表明燕麦与科多8号、蒙农青饲一号、农垦四号、紫花白间作群体的粗脂肪和粗蛋白含量大于单作燕麦:间作群体秸秆鲜重和干重比单作分别增加了37.5%、15.9%、9.9%24.2%和2.3%、15.0%、9.0%、16.4%,籽粒间作比单作分别提高了11.1%、12.2%、10.9%和12.9%。可见,间作群体因光照和地温条件优于单作,因而单产和营养品质优于单作。

In 2006,the experiment was conducted in Hohhot,study on ecological effect of the intercropping of different crops and oats in Inner Mongolia.Determination of light intensity by ZF—77-1uxmeter,the results showed:Keduo 8、Mennongqingsi 1、Nongken 4、Zihuabaieompared with monocropping,illumination intensity of middle part and illumination intensity of bottom increased,and transmittance increased;Zihuabai illumination intensity of middle part and bottom decreased40.6%、66.3%,and transmittance decreased 26.3%、25.4%。 Determination of 5、10、15、20、25、30cm depth ground temperatures by CRB electronic instrument for measuring temperature,Depth soil temperature of 5cm～30cmdecreases from top to bottom,the same temperature of intereropping is higher then monocropping;average temperature of five centimeters soil layer at whole growth stage it:creased by0.7～9℃.After harvest,determination of crude protein and crude fat content by micro - kjeldahl method and soxhlet extractior.,crude protein and crude fat content in intercropping system were greater than those for monocropping.The yields of green forage and hey for intercropping system were increased by 37.5%、5.9%、9.9% 24.2% and 2.3%、15.0%、9.0%、16.4% as compared with monocropping crops,and grain increased by 11.1%、12.2%、10.9% and 12.9% as compared with monocropping crops. Integrated analysis indicates that intercropping system can take advantage of light,temperature resources of local fields sufficiently,enhance the yield and nutrient condition.