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据试验,套栽红薯麦田因留有空地(预留行27～35厘米),667平方米比净作麦田减产6.5～30公斤,而红薯增产多达559～1119公斤,增产红薯的收入远远多于小麦的减产值。其优点如下: 1.由于套种实现了夏薯早栽(一般可提早1个月左右),促使红薯早发,早结薯,又延长了生长期,从而达到高产、优质的目的。据调查,麦垄种红薯比麦后抢栽的一般增产30％左右,切干率提高3个百分点,出粉率提高1—2个百分点;2.套种红薯因有小麦的遮阴挡风,薯苗不受日晒
According to the test, planted sweet potato wheat fields due to the availability of open space (reserved line 27 ~ 35 cm), 667 square meters net yield of wheat reduced 6.5 to 30 kg, and sweet potato yield up to 559 ~ 1119 kg, yield sweet potato far More than the reduction of wheat output. The advantages are as follows: 1. As a result of intercropping to achieve early planting sweet potato (usually about 1 month earlier), to promote early sweet potato, early tubers, but also extended the growth period, so as to achieve high yield, high quality purposes. According to the survey, the total output of sweet potato after harvest is about 30% higher than that of wheat after wheat harvest, the cutting rate is increased by 3% and the yield of flour is increased by 1-2%. 2. The intercropping of sweet potato is caused by shading of wheat, Seedlings from the sun