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良种是农业生产最重要、最基本的生产资料,是任何其它生产资料都无法替代的,而作为科学技术载体——品种(良种)必须有良法做保证,才能获得丰产丰收。良法——先进的、科学的栽培技术为品种创造良好的土壤、水肥、气热、光照等环境条件,满足良种对水、肥、气、热、光等因子需求,发挥其增产作用。可见良种与良法是内因和外因的辩证统一,良种是增产内因,良法是增产外因,内因通过外因而发挥最大增产潜力,外因作用于内因而表现其增产效果。因此在生产实践中要因地选种,因种栽培。如何发挥优良品种增产潜力,怎样才能做到良种与良法合理结合呢?笔者认为应搞好以下几点工作:
Good seed is the most important and basic means of production in agricultural production, and can not be replaced by any other means of production. As a carrier of science and technology, variety (seed) must have good laws to ensure that high yield can be obtained. Good Law - advanced and scientific cultivation techniques create good soil, water and fertilizer, heat and light and other environmental conditions for varieties to meet the demand for water, fertilizer, gas, heat, light and other factors to play an increasing role. It can be seen that the thoroughbred and good law are the dialectical unity of internal and external causes. The good seed is the internal factor of increasing production while the good law is the external factor of increasing production. The internal factor exerts the maximum yield potential through external factors and the external factors exert its effect on internal yield. Therefore, in practice due to the selection of species, because of cultivation. How to give play to the potential of increasing the yield of fine varieties and how can we achieve the rational combination of good varieties and good laws? The author believes that the following work should be done: