指出以水稻为主的稻麦两熟地区，评价钾肥效益应以轮作周期为基础。
The paper also revealed that economic benefit of applied K should be evaluated on the basis of the rotation period in the rice-wheat cropping areas.
农业以生产粮食为主，水稻是主要作物，经济作物以甘蔗、油菜、花生、烟草为主。
Agriculture is based on grain production with rice as the main crop and sugarcane, cole, peanut and tobacco as the main economic crops.
农业以粮食生产为主，主要作物有水稻、麦类、玉米、黄麻等，茶叶产量居全国第一。
With agriculture based on grain production, Zhejiang’s main crops include rice, wheat, maize, and jute etc, and Zhejiang is the first in the production volume of tea in China.
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