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为不断提高小麦产量,做到因土、因作物品种经济合理用肥,作者针对氮素营养在不同生态型小麦品种上的增产效应氮肥最佳施用量,与氮对小麦子实品质的影响等问题进行了研究。 试验材料及方法 试验设计:氮素用量分五级(0、8、12、16、20斤/亩),有一次施用(作种肥)和分次施用(种肥追肥)两种。试验用小麦品种是目前克拜淋溶黑土区主要栽培的三大生态型品种,即喜肥型“克76—250”旱肥型“克73—441”,抗旱型“克70—96”。克76—250保苗株数为550株/平方米,克73—441,克70—96为650株/平方米。 试验采取裂区法,5次重复,畦田种植。各处理
In order to improve the yield of wheat continuously and to make the soil reasonably fertilize due to the economical and reasonable crop varieties, the author aimed at the yield increasing effect of nitrogen nutrition on different ecotypes of wheat varieties, the optimum application amount of nitrogen fertilizer and the effect of nitrogen on the quality of wheat The problem was studied. Test Materials and Methods Experimental Design: Nitrogen dosage is divided into five levels (0, 8, 12, 16, 20 kg / mu). There are two kinds of application once (as seed fertilizer) and grading application ( The experimental wheat varieties are currently the three major eco-cultivars mainly cultivated in the Bai Qiu leaching black soil area, namely, hi-fat type “g 76-250” dry fertilizer type “g 73-441” and drought-resistant type “g 70-96”. Ke 76-250 Paul number of seedlings of 550 plants / square meters, grams of 73-441, grams of 70-96 to 650 plants / square meter. Test to split zone method, 5 replicates, Tian field planting. Each treatment