论文部分内容阅读
1973年我连种植杂交高粱700亩,平均亩产700斤,其中有200亩亩产超过千斤。从生产实践中我们体会到,要夺取高粱丰产,保全苗是一个关键。首先要做好播前整地工作,在头年秋季深翻土地后,要抓紧耙耱,力求做到表土细碎。春耕宜早,一般应在二月底、三月初进行,即在春播小麦时对高梁地就要进行整地保墒工作。据我们经验,如整地保墒工作推迟到三月底、四月初进行,表土不能细碎,播深播浅都不能保全苗。其次,要掌握好播种时间和播种深度。我们认为红粒种(如原杂10号)以在4月20～30
In 1973, I planted 700 acres of hybrid sorghum with an average yield of 700 kg per mu, of which 200 mu per mu was over 1000 kg. From the production practice we realize that to seize sorghum high yield, preservation of seedlings is a key. First of all, we should do a good job in pre-sowing and site preparation. After the land is sown deep in the autumn of the first year, we should pay close attention to harrowing the ground and strive to achieve a fine crust. Spring plowing should be early, the general should be carried out in late February and early March, that is, spring wheat sowing on the sorghum to land preparation for soil conservation work. According to our experience, if soil preparation and soil conservation work is postponed until the end of March and early April, the topsoil can not be finely crushed. Second, we must master the sowing time and sowing depth. We think of red seeds (such as the original hybrid No. 10) in April 20 ~ 30