成年AV小说网站全部免费

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玉米膜下滴灌系統冬季防護應采取哪些措施 ?

(1)根據地形條件,在每套滴灌系統地埋管網的最低處布設排水井。

(2)將地埋管道埋設在最大凍土層深度以下。

(3)根據項目區面積分布情況,按2000 畝~3000 畝配備一臺空壓機,在冰凍前向管道內吹氣排除管道內存水,降低管道凍脹的可能性。

(4)灌溉季節結束后,將系統的地上部分,如水泵機組、過濾器與施肥器等首部設備、地面移動支管或鋪管及滴灌毛管拆下入庫保管。

(5)冬季冰凍前,將給水栓取下入庫保管,下口用法蘭蓋封堵后填土保護。


成年AV小说网站全部免费
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