论文部分内容阅读
农业上所说的良种,一方面是指优良的品种,另一方面是指优良的种子。二者是密切相关的。 采用良种是一项经济有效的衣业增产措施。在土、肥、水和管理条件相同,采用良种比原有品种增产,这是已被无数实践证明过的事实。但这也并不是说,只要采用良种,不管怎么种也会增产;如果种不好,不但不增产,还可能会减产呢！这不是种子不好,而是种的不得法。农谚说:“良种是个
Agriculture, said the best seed, on the one hand refers to the fine varieties, on the other hand refers to the fine seeds. The two are closely related. The use of seed is a cost-effective clothing industry stimulation measures. In the same soil, fertilizer, water and management conditions, the use of improved varieties than the original yield, which has been proven by numerous facts. But this does not mean that as long as the use of high-quality, no matter how kind will increase production; if the kind is not good, not only does not increase production, it may also cut it! This is not a bad seed, but a wrong kind of seed. Agricultural proverb said: "A good species is