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在无霜期只有约180天地区的棉田里,可不可以搞间作套种呢?我们在北京市平谷县大兴庄乡大兴庄村进行了以下几种方式试验。(一) 1.4米为一耕作带的棉粮套种地力一般的棉田,以1.4米为一带,沟畦宽47厘米,种小麦或大麦2～3行;台畦宽93厘米直播或移栽两行棉花,棉行相距40厘米,株距20～23厘米,每亩留棉苗4,000～4,900株。收麦后麦行里不再套种,称前套后不套。
In the frost-free period only about 180 days in the cotton fields in the area, intercropping intercropping it? We are in Daxingzhuang Township, Pinggu County, Beijing Daxingzhuang village conducted the following ways to test. (A) 1.4 meters for a cotton belt Inter-farming cotton fields generally to 1.4 meters for the area, ditch width 47 cm, wheat or barley 2 to 3 lines; Taiwan 畦 93 cm live or transplanted two lines Cotton, cotton line 40 cm apart, spacing 20 ~ 23 cm, leaving 4,000 ~ 4,900 plants per acre cotton seedlings. After the wheat is received, the wheat is no longer planted in the line, saying that the cover is not set after the cover is set.