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为了更好地发挥杂交水稻的优势,选购杂交稻种时应注意以下六点: 1.不买没经过审定的组合 没有审定的组合抗病性及产量不稳定,风险性大。审定后的组合一般抗病性好,高产稳产,并附有适宜种植的区域和主要栽培技术要点。若买杂交稻新组合宜买当地农技部门推荐的。 2.慎买越区种子 跨越不同生态地区购买种子,往往因不适应新地区的生态条件而发挥不出其增产潜力。所以不经试种,不宜购买越区种子。 3.注意良种良法配套 购种时一定要掌握组合
In order to give full play to the advantages of hybrid rice, the following six points should be paid attention to during the selection of hybrid rice varieties: 1. Do not buy without a validated combination of untested combination of disease resistance and yield instability, risk. After the validation of the general combination of good disease resistance, high and stable yield, with a suitable planting area and the main cultivation techniques. If you buy a new combination of hybrid rice should buy the local agricultural sector recommended. 2. Cautious buy more seeds across different ecological regions to buy seeds, often because they do not adapt to the ecological conditions of the new area and can not play its production potential. Therefore, without trial, it is not appropriate to buy the more seeds. 3. Pay attention to good seed good law supporting purchase must master the combination