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一、点播的好处为了加速良种繁育,扩大繁殖系数,故采用点播。它的好处有4点:(1)机器条播时每亩需要棉籽16斤,点播时仅用8斤,可以节省种子50%。(2)可以保证等距全苗,同时每亩可节省间苗、定苗人工0.1—0.2个。(3)因种子集中,拱土力强,一般可比条播的出苗早一天;因一穴有数株,便于选优去劣,能保证齐苗壮苗。(4)开沟、复土、镇压等项作业同时进行,有利于保墒保苗。利用人工点播
First, the benefits of on-demand In order to accelerate the breeding of breeding, expanding the breeding coefficient, it uses on-demand. Its benefits have 4 points: (1) machine sowing need 16 kg of cottonseed per acre, on-demand only 8 kg, you can save 50% of the seeds. (2) Isometric seedlings can be guaranteed, while saving seedlings per acre, Dingmiao artificial 0.1-0.2. (3) due to the concentration of seeds, strong arching soil, generally one day earlier than the broadcast seedling emergence; due to a number of strains of one-point, easy to select superior to poor, to ensure Qi Miao Zhuang Miao. (4) ditching, re-soil, repression and other operations at the same time, is conducive to Paul seedlings. Use artificial on-demand