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一、材料与方法 1.供试品种为莆大麦四号,83-m15。 2.试验地红壤旱地,前作秋大豆,播种前每亩用呋喃丹1.25公斤拌细沙进行土壤处理,基肥施人粪尿30担(每担约40公斤),过磷酸钙25公斤,硫酸钾10公斤;追肥:三叶期每亩用尿素2.5公斤,硫酸钾5公斤。播种量按每亩基本苗十五万计算。 3.处理设计: (1)播种期试验分11/10(月/日)11/20、11/30,12/10四期,小区面积2厘,不设重复。 (2)籽粒增重规律观察;于抽穗开花时取同一生育阶段麦穗挂牌,开花后15天
First, the material and methods 1. The test varieties for the Pu barley on the 4th, 83-m15. 2. Experimental red soil arid land, before the autumn soybean, before planting per mu with 1.25 kg of furan Dan fine sand for soil treatment, manure applied to the base fertilizer 30 (about 40 kg each), superphosphate 25 kg, potassium sulfate 10 kg; topdressing: clover 2.5 mu per mu with urea, potassium 5 kg. Seeding rate per acre base seed 150,000 calculation. 3. Processing Design: (1) The sowing period test is divided into 11/10 (month / day) 11/20, 11/30, 12/10 and 4 phases with a plot size of 2% without any duplication. (2) Observed the law of grain weight; take the ear of the same growth stage at heading and flowering, listed 15 days after flowering