旱地玉米少耕穴灌聚肥节水技术应用效果简析

Effect Analysis on Technology of Fertilizer Gathering and Water Saving by Conservative Tillage and Hole Irrigation in Dry Land Corn

不同地区、不同地形、不同种植模式下进行水肥利用率及增产增收效果的比较,结果表明,旱地玉米运用少耕穴灌聚肥节水技术,北部盆地丘陵区的增产增收效果普遍高于南部丘陵区,比常规漫灌地膜覆盖种植、常规漫灌露地种植、旱地地膜覆盖等种植模式均有不同程度的增产增收效果;实施少耕穴灌聚肥节水技术的田块,作物生长期间的土壤含水量比常规地膜覆盖区、常规露地种植区高,肥料利用率比常规地膜覆盖种植区也有所提高。旱地玉米少耕穴灌技术在干旱半干旱地区具有广阔的推广应用前景。

Comparison of water,fertilizer using ratio and effect to production and income improvement in various areas,terrain and under distinct cultivating modes was made.The result showed that,with the technology application,the yield improvement effect in northern hilly area was generally higher than that in the southern part;some better effect than those planting patterns of the conventional flood-irrigation film-mulching,conventional flood-irrigation open-field and dry land film-mulching;In addition,in fields sections of the technology implementation,soil moisture contents during crop growth were higher than those in conventional plastic film mulching sections,in conventional open fields,and the fertilizer utilization ratio improved than in conventional plastic film mulching fields.It was concluded that dry land corn conservative-tillage hole-irrigation technology has a broad application prospect in the arid and semi-arid land area.