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在贵州省1400m以上高海拔地区种植杂交水稻,欲获高产稳产,尚需探讨许多问题。本文报导在海拔1450m所进行的杂稻不同群体结构的茎蘖成穗性状及其与产量的关系的试验结果,该试验在贵州省安顺市宋旗镇破木村进行。 材料和方法 一、材料 供试材料为威优64。。系湖南省新化县提供,种子纯度为98％,发芽率为84％。 二、方法 催芽播种,亩播量20kg,露地水育秧。设3因素3水平,即密度:2.5 ×3(cm),2.5×3.5(cm),2.5×4(cm) ;苗/穴:2、3、4;尿素追肥kg/亩:12.5,17.5,22.5取Lg(3~4)正交表作正交试验。小区面积
In Guizhou Province 1400m above the high altitude areas planted hybrid rice, want to be high and stable yield, still need to explore many problems. This paper reports the results of the experiment on the relationship between the tillering traits of different tillers and their relationship with the yield of different groups of hybrid rice at 1450 m altitude. The experiment was carried out in Chao Mu Village, Song Qi Town, Anshun City, Guizhou Province. Materials and methods First, the material for the test material Wei You 64. . Department of Xinhua County, Hunan Province, seed purity of 98%, the germination rate was 84%. Second, the method of germination sowing, mu sowing 20kg, open field watering seedlings. The density of 2.5 × 3 (cm), 2.5 × 3.5 (cm), 2.5 × 4 (cm); seedling / cave: 2,3,4; urea top dressing kg / mu: 12.5,17.5, 22.5 Lg (3 ~ 4) orthogonal table for orthogonal test. Residential area