旱地冬小麦全膜覆土穴播效益研究

为了验证全膜覆土穴播技术在宁夏旱地小麦等旱作密植作物上的应用效果，设计了全膜覆土穴播、传统覆膜穴播、膜侧种植和露地条播4种种植方式，考察不同种植方式下小麦的增产效果，及对土壤含水量和土温的影响。结果表明，全膜覆土穴播种植与露地条播种植相比，在冬小麦各生育期0～100cm土壤贮水量和0～25cm平均地温均有所提高；小麦株高高出12．2cm，穗长增加1．28cm，千粒重增加4．11g，产量高出636．0kg／hm^2，增产38．3％。

Effectiveness of Whole Plastic-film Mulching and Hole Seeding Technique of Winter Wheat in Arid Region

In order to verify the application effect of whole plastic-film mulching and hole seeding technique in upland wheat in Ningxia Hui Autonomous Region, four planting modes, whole plastic-film mulching and hole seeding, traditional film mulching and hole seeding, film-side hole seeding and drill sowing in open field, were designed in the experiment, to investigate yield improvement effect of wheat under different planting modes and effects on soil water content and soil temperature. The results showed that compared with drill sowing in open field, water storage of soil in the depth of 0-100 cm and average soil temperature in the depth of 0-25 cm in whole plasticfilm mulching and hole seeding cultivation were slightly increased in various growth periods of winter wheat; plant height of wheat was increased by 12.2 cm; ear length was increased by 1.28 cm; 1000-grain weight was increased by 4.11 g; yield was increased by 636.0 kg/hm2, with yield increase rate of 38.3%.