论文部分内容阅读
京杂6号玉米用“330”为母本,“许052”为父本杂交配制而成。经我县两年种植,具有抗病、丰产、优质的特性,其制种要点如下: 1.选地与施肥:因父本许052抗旱性较差,应选择平肥、担旱、有灌溉条件地块作制种田。隔离区应在400米以上。每亩施农家肥6,000～8,000斤,过石100斤,生育期间追施两次尿素共50斤。 2.行比与播种方法:父、母本行比2:6或2:8。母本与一期父本同时播种,3～4天后播二期父本。株行距以母本1.7×1.2～1.3尺,父本1.7×1.1～1.2尺为宜。覆土1～1.5寸,如土壤墒情不足,则要坐水播种。
Beijing hybrid No. 6 corn with “330” as the female parent, “Xu 052” as the male parent from the hybrid preparation. The county planted in two years, with disease-resistant, high yield, high quality features, the main points of their production are as follows: 1. Selection and fertilization: Due to the father of poor resistance to drought 052, should choose flat fertilizer, drought, irrigation Conditional parcel farming. Isolation area should be more than 400 meters. Manure fertilizer per acre 6,000 to 8,000 pounds, over 100 pounds of stone, topdressing twice during the birth of urea 50 kg. 2 line ratio and sowing method: father, mother line ratio 2: 6 or 2: 8. The female parent sows at the same time as the first parent, and sows the second parent after 3 to 4 days. Plant spacing to the mother of 1.7 × 1.2 ~ 1.3 feet, the father of 1.7 × 1.1 ~ 1.2 feet is appropriate. Covering 1 to 1.5 inches, such as lack of soil moisture, then sow the water.