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这个大队去年秋播小麦450亩,占耕地面积的54.6%。由于秋季雨大、地湿耕作困难,小麦播种浅、覆土薄、质量不高,分蘗节接近地表,特別在播种后又阴雨連綿表层土壤紧密板結,通透性不良,直接影响了小麦植株生长发育,因而,当前麦田普遍表現出“湿、板、冷、薄”四大特点。首先,所謂湿,当前麦田含水量据測定一般在26%上下,比小麦生长适宜的土壤含水量高37%。其次,由于雨大地湿,表土普遍板結,通透性不好,使好气性微生物活动能力减弱,有
This brigade sowed 450 acres of wheat in autumn last year, accounting for 54.6% of the total arable land. Due to the heavy rainfall in autumn and wet tillage, the planting of wheat is shallow, the soil is thin, the quality is not high, and the tiller knuckle is close to the surface. Especially after sowing, the rainy and rainy surface soil compacted tightly and the permeability is poor, which directly affects the growth of wheat Therefore, the current wheat fields generally show the four characteristics of “wet, plate, cold and thin”. First of all, the so-called wet, the current moisture content of wheat is generally measured at about 26%, 37% higher than the soil moisture content suitable for wheat growth. Second, due to rain wetlands, topsoil common compaction, poor permeability, aerobic microorganisms decreased activity, there