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小麦沟播是在干早地区,在拨干种湿的基础上发展起来的一种抗旱播种方式。对促进出苗,保全苗具有较好的作用。我区秋播小麦,常因墒情差、浇底墒水,而延误播期;趁墒抢种,播种过早、过迟,又易引起出苗不良,冬前麦苗生长势弱,或出现旺长现象,导致冻害发生。为了争取适期播种,促进苗全、苗壮,我们对小麦沟播进行了探讨。试验是在亩产小麦400公斤左右的灌溉区进行的。共设置6个处理:①平播(整平地,用耧等行距播种);②沟播;③沟播+越冬培土;④沟播+返青培土;⑤沟播+越冬返青两次培土;⑥沟播+集中施肥(化肥开沟集中施入播种沟)。重复两次。小区面积1.2分。播种方法:用24厘米耧,在耧铧上捆一个草把,去掉抹土棍(即系在耧脚上木棍),开成宽、深各10厘米的播种沟。种子上覆土3厘米多,上面沟深6.5厘米。10月8日播种,亩播量7.5公斤。品种为百农3217。生育期间浇水三次,追肥两次。试验结果如下:
Wheat ditching is a drought-resistant sowing method developed in the dry-early-morning area on the basis of diversion and wetting. To promote emergence, preservation of seedlings have a good effect. Autumn planting wheat in my area, often due to poor moisture conditions, pouring water, but delayed sowing; while seize the moisture species, sowing too early, too late, and easily lead to poor emergence, weak growth of wheat seedlings before the winter, or flourishing phenomenon, Frost damage occurred. In order to fight for the appropriate sowing, to promote Miao, Miao Zhuang, we conducted a discussion of wheat sowing. The experiment was carried out in an irrigated area of about 400 kg per mu of wheat. A total of six processing settings: ① flat-screen (flat ground, with 耧 row spacing sowing); ② sowing; ③ Sowing sowing + winter planting soil; ④ Sowing + rejuvenation soil; ⑤ Sowing sowing + Sowing + concentrated fertilization (fertilizer ditches concentrated into sowing ditch). Repeat twice. Residential area of 1.2 points. Seeding method: With 24 cm 耧, put a lawn on the tile, remove the earthen sticks (that is, tied to the feet on the stick), opened wide, deep 10 cm of planting groove. Seed overlying soil 3 cm, 6.5 cm deep above the ditch. October 8 sowing, mu sowing 7.5 kg. Breed 3200. Watering three times during fertility, top dressing twice. The test results are as follows: