宁南旱作农区谷子微集水种植增产技术研究

在宁南旱作农区进行谷子微集水种植田间试验,研究不同垄沟带型对土壤有效蓄水量、不同生育阶段生长量积累和主要经济性状的影响。结果表明,垄沟微集水种植蓄水作用效果明显,以垄沟比60∶60带型效果最好。7—9月份雨季蓄墒期不同微集水带型的土壤蓄墒效率为40.4—62.9%,蓄墒效率较露地平播（CK）提高51%以上。谷子垄沟集水种植主要经济指标均较露地平播（CK）高,平均穗长、小穗数和穗粒重分别比露地种植（CK）区增加了3.94—5.42cm、9.8—16.8个和5.2g—5.25g。

Technique of Output Increase of Micro-Catchment on Foxtail Millet on in Arid Farming of the South of Ningxia

The micro-catchment on foxtail millet field experiment was conducted at different places in arid farming of the south of Ningxia to effect of different ridge and ditch stripshapes on soil moisture,growth accumulation at different growth stage and major economical traits.The results showed that there were obvious effects on the water storage of micro-catchment cultivation compared with traditional cultivation（CK） .Among those,the optimal ridge and furrow ratio was 60∶ 60.The soil water storage efficiencies of different micro-catchment cultivation were 40.4% ～ 62.9% during rainy period from July to September.The water storage efficiency increased over 51% than traditional cultivation（CK） .The major economy indexes of ridge and furrow micro-catchment cultivation were higher compared with traditional cultivation（CK） .The length per spike,number per spike and grain weight per spike increased by 3.94 ～ 5.42cm、9.8 ～ 16.8 and 5.2g ～ 5.25g than the traditional cultivation（CK）,respectively.