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试验看出,翻压油菜绿肥具有明显的效果,在所内试验增产稻谷20%左右。欲提高肥效,必须提高鲜草产量。影响鲜草产量的主要因素有:1、整地保墒是保苗的关键。原茬春耙、秋翻耙春耙压、秋翻春耙压三种整地方法以秋翻耙春耙压为好,土壤返浆快,有利保全苗,门源油菜亩产鲜草可达2,343.5斤/亩。 2、抢在返浆前3月中下旬播种,播种方法,条播有利于机械化,有利于抗旱保全苗。播种量,条播的每亩3斤,撒播的每亩3—4斤为宜。播后一般情况下不宜灌水。现蕾期追肥可使油荣生长良好, 以小肥增大肥。3、水田翻压油菜绿肥,可使土壤中有机质增加0.051%,磷增加0.56毫克/百克土,翻压期以5月20—25日,即在半花半角期鲜草产量高,养分含量丰富,肥效高。翻压方法可用犁翻和轧耙。
Test shows that pressure rape green manure has a significant effect, in the experiment to increase about 20% of rice. To improve fertilizer efficiency, we must increase the yield of fresh grass. The main factors affecting fresh grass yield are: 1, soil preparation is the key to preserving soil moisture. The original crop spring rake, autumn rake spring rake pressure, spring autumn rake press three kinds of soil preparation method to rake harrow spring autumn rake is good, the soil back to pulp fast, favorable preservation seedlings, door source rape per acre fresh grass up to 2,343.5 Kg / acre 2, grab back in March before the late sowing, sowing methods, sowing is conducive to mechanization, is conducive to drought protection seedlings. Seeding rate, 3 acres per mu broadcast, sowing 3-4 mu per mu is appropriate. Under normal circumstances broadcast should not be irrigated. Budding top dressing can make a good growth of oil Rong, Xiao fat increase fertilizer. 3, paddy field pressure rape green manure, soil organic matter can increase 0.051%, phosphorus increased by 0.56 mg / 100 grams of soil, turning pressure period to May 20-25, that half-flower half-cycle fresh grass yield, nutrient content Rich, high fertilizer efficiency. Tension method can be used plowing and rake.