谷子全膜双垄沟穴播技术效应研究——以宁夏同心县为例

Effectiveness of Double Ridge Mulching and Hole Seeding Technique of Millet——Taking Tongxin for Example

研究了9种覆膜种植方式对谷子水分效应、温度效应及经济效益的影响，其中秋季全膜双垄覆盖春季沟穴播种植比露地直播谷子在不同生育期0—20cm的土壤含水量和0—100cm的土壤贮水量均有所提高。水分利用率高出5．25kg／（mm·hm^2）；各生育期0～20cm的平均地温也有所提升，尤其是拔节期以前；株高高出32．17cm，茎粗增加0．52cm，千粒重增加0．45g，产量高出2191．5kg／hm^2，增产80．97％，增收66．7％。

The influence of nine mulching modes on moisture effects, temperature effects and economic benefits of millet were studied in the paper. Compared with direct seeding millet in open field, soil water content in the depth of 0-20 cm and water storage of soil in the depth of 0-100 cm in autumn double ridge mulching and spring hole seeding were slightly increased in various growth periods of millet; water use efficiency was increased by 5.25 kg/ （mm·hm^2）; the average soil temperature in the depth of 0-20 cm during various growth periods was slightly increased, especially before jointing stage; plant height was increased by 32.17 cm; stem diameter was increased by 0.52 cm; 1000-grain weight was increased by 0.45 g; yield was increased by 2 191.5 kg/hm^2, with vield increase rate of 80.97%; income was increased by 66.7%.