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调种成功与否的关键在于掌握不同作物不同品种的特性,了解调种的一般规律。主要应注意以下几个问题:1.如果调生产用种,必须从生态条件非常相近的地方调,从远地调种应是当地曾经用过的品种。引用高产优质的新品种一定要通过试种,即少量引进,经过试种确认可行时,再大批量调入。2.要掌握调入品种的特性,如生育期长短,对干旱、低温、盐
The key to success or not is to master the characteristics of different varieties of different crops and to understand the general rules of planting. Main attention should be paid to the following questions: 1. If the transfer of production of species, must be from the ecological conditions are very similar to the tune, far from the tune should be the local varieties have been used. Quoting high-yield and high-quality new varieties must pass the test species, that is, a small amount of introduction, after the test confirmed that feasible, and then transferred in large quantities. 2. To grasp the characteristics of transferred varieties, such as the length of growth period, drought, low temperature, salt