论文部分内容阅读
我镇同全省玉米产区一样,旱地面积大,玉米面积占粮田面积的60%以上。缺水、少肥、土质薄是我地区玉米产量低而不稳的主要原因。干旱在各种灾害中占第一位(据1950～1979年统计受灾损失粮食3062.25亿公斤,而因干旱减产1532亿公斤)。通过大量地试验研究,摸索出既节水又增肥,增产的主要措施——秸秆半覆盖栽培法,在我县取得较好的效益。如1991年年降雨量仅415毫米的大旱之年,在我镇海拔1200米的行马
My town the same as the province’s corn-producing areas, dry land area, corn area accounts for more than 60% of the area of grain. Water shortage, less fat, thin soil is the main reason for low and unstable maize production in our region. Drought hit the first place among various disasters (according to statistics from 1950 to 1979, 306.225 billion kilograms of grain were lost and 153.2 billion kilograms were lost due to drought). Through a large number of experimental studies, to explore both water-saving and fertilizer, yield the main measures - straw semi-covered cultivation method, in my county to obtain better benefits. Such as 1991 annual rainfall of only 415 mm drought year, in my town at 1200 meters above sea level