论文部分内容阅读
微肥是粮经作物生产上的一种经济、速效、提高产量和改进品质的肥料。现将目前使用的主要几种微肥作如下介绍: 一、硼肥。有硼酸、硼砂、硼泥。对硼敏感的作物有豆科和十字花科作物,还有甜苹、麻类、棉花、花椰菜、番茄、黄瓜等经济蔬菜作物、葡萄、梨、苹果等也适宜。对小麦、玉米、水稻等作物不如上述作物效果好。硼肥可作基肥、追肥、种肥和根外追肥。硼泥只适宜作基肥,一般每亩20—25公斤与有机肥混施效果好。易溶性硼酸或硼砂一般亩用25—75公斤。浸种一般用0.02—0.05％的溶液.先用40℃水溶解,然后稀释,喷施浓度为0.1—0.2％溶液,每亩用量10公斤较
Microfertilizer is an economical, quick-acting, yield-improving and quality-improving fertilizer for grain-and-crop production. Now the main types of fertilizer used as follows: First, boron. Boric acid, borax, boron mud. Boron and cruciferous crops sensitive to boron are also suitable for economic crops such as sweet apples, hemp, cotton, broccoli, tomatoes and cucumbers, as well as grapes, pears and apples. Crops such as wheat, corn and rice are less effective than the above crops. Boron can be used as base fertilizer, top dressing, fertilizer and root top dressing. Boron mud is only suitable for basal fertilizer, generally 20-25 kg per mu mixed with organic fertilizer effect is good. Soluble boric acid or borax general mu 25-75 kg. Soaking with 0.02-0.05% of the solution generally first dissolved with water at 40 ℃, and then diluted, spraying a concentration of 0.1-0.2% solution, the amount of 10 kg per acre than the