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1989年,我所在贵定昌明区有水源灌溉的坝子田(简称保灌田)推广应用水稻半旱式垄作栽培(简称垄作)302亩,平均亩产540公斤,每亩增收123公斤,增产29.6％.获得了显著的增产效果。1990年示范推广扩大到2810亩。在大面积示范推广的同时,为了进一步探讨垄作在保灌田上的综合利用和高产途径,我们进行了免耕与魏耕、不同品种、不同行比的大区对比试验。现将试验总结如下: 一、试验方法与经过试验设在本所科研示范田,海拔1006米,年平均温度15.4℃,4～9月平均气温在14.5～16.6℃,无霜期280天左右,土质各试验田均为沙质壤土、肥力
In 1989, there was 302-mu of paddy fields under water irrigation in Dingchang District where we are located. The average yield per mu was 540 kilograms, an increase of 123 kilograms per mu and an increase of 29.6% %. Obtained a significant increase in production. Demonstration in 1990 expanded to 2810 acres. In the meantime, in order to further explore the comprehensive utilization and high-yielding ways of ridge-based irrigation in the irrigated fields, we conducted comparative experiments on no-tillage and Wegong, different varieties and different ratios of large-scale demonstration and extension. Now the test is summarized as follows: First, the test method and the test set in our research demonstration field, elevation 1006 meters, the annual average temperature of 15.4 ℃, 4 ~ September average temperature 14.5 ~ 16.6 ℃, frost-free period 280 days, soil Experimental field are sandy loam, fertility