high yielding variety meaning in English

高产品种

Early bearing and high yield variety of chestnut - yunyao and yunzao
早实丰产的板栗新品种云腰和云早
The high yielding varieties gave higher yields at increased nitrogen levels but the rice quality was not comparable to that of some high quality varieties
氮水平提高时高产品种产量增加，但稻米品质比不上一些优质品种。
It was strongly felt that the only way to dramatically increase rice production under these circumstances was the development of new high yielding varieties and cultural technologies
人们强烈感到，在这种条件下大幅提高水稻产量要开发新的高产品种和栽培技术。
However , when the amount of nitrogen fertilizer increased with the use of high yield varieties , the traditional method failed to contribute to expecting high yield and caused part nitrogen fertilizer wasted
然而使用高产品种施氮量提高后，传统施肥方法不能得到预期产量并造成部分氮肥浪费。
The use of high yield varieties caused a complete change in technology , involving the cultural practices , the use of fertilizers , a better utilization of land , a controlled water supply and effective pest control and so on
种植高产品种植高产品种要求彻底改变技术，包括栽培措施、施肥、更好地利用土地、供水控制、病虫害有效防治等等。