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2002年藁城市承担农业部“一年两熟”农区机械化保护性耕作试验示范项目,2003年实施小麦机械化保护性耕作面积达4080hm~2,并取得明显成效。机械化保护性耕作的沟播,较常规播种冬天地温高,因此小麦的冬春苗情群体适宜、根系发达、穗层整齐、穗大、粒多、籽粒饱满。由于免耕播种,秸秆覆盖在沟背,减少水分蒸发,加上沟播小麦较密,小麦垄内水分的蒸发量减少,因此免耕播种保墒蓄水能力强,可少浇1次水。
In 2002, Cheng City undertook the pilot project of mechanized conservation tillage in rural areas under the Ministry of Agriculture, “Two Bikes per Year”. In 2003, the mechanized tillage area for wheat mechanization reached 4080 hm ~ 2 and achieved remarkable results. Mechanized tillage of tillage, compared with conventional sowing winter high ground temperature, so the winter and spring wheat seedlings suitable population, developed root system, spike neat, spike large, more grain, full grains. As no-till sowing, straw mulching in the ditch back to reduce the evaporation of water, coupled with the densely mulching wheat, wheat evaporation reduced the water within the ridge, so no tillage sowing water storage ability, can be poured less water.