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一、调查方法采取多点取样混合脱粒测产法。对四种不同耕作类型的小麦田块(相邻地块),每种确定三个样点,每点调查1平方米植株,然后混合脱粒秤重,折算亩产量。同时每种类型取混合样25株,通过室内考种得出相应的经济性状。二、耕作条件和产量 1.机耕压青地,缓坡旱地,属自然轮歇压青(赤地压青),耕深25厘米,播前进行表土镇压,未施肥。用机引12行播种机,播种玉兰小麦,亩播量10公斤。生育前期中耕锄草一次。收获前期田间调查,群体株高73厘米,亩成穗数20.8万个。理论产量118公斤,实际亩产88公斤。 2.普通犁压青地,未施肥,自然轮压,耕深17～20厘米。犁播玉兰小麦,每亩9公斤,生育前期中耕锄草一次。田间调查,群体株
First, the survey method to take multiple sampling mixed thresholding method. Four different tillage types of wheat plots (adjacent plots), each identified three samples, each survey of 1 square meter plant, and then mixed threshing weighing, conversion of mu yield. At the same time, 25 samples were taken from each type, and the corresponding economic traits were obtained through indoor test. Second, tillage conditions and yield 1. Plowing green land, gentle slope dry land, is a natural turning pressure green (red pressure green), 25 cm deep plowing, sowing soil suppression before sowing, no fertilization. Use machine quoted 12 rows of sowing machine, planting Magnolia wheat, mu sowing capacity of 10 kg. Early tilling farming weeding once. Early field harvest survey, the group height of 73 cm, 208,000 acres of spikes into. Theoretical yield of 118 kg, the actual yield of 88 kg. Ordinary plow pressure green, not fertilization, natural wheel pressure, deep plowing 17 to 20 cm. Plow sowing Magnolia wheat, 9 kilograms per acre, early tilling farming once again weeding. Field investigation, population strain