Under the field experiment conditions, effects of site-specific nitrogen management(SSNM)on grain yield and grain quality of rice were studied.
在大田试验条件下，观察了实地氮肥管理对水稻产量和稻米品质的影响。
Heilongjiang province is the important commodity grain production base. It is very important to improve the quality and yield of the grain for enhancing the whole national economy level.
黑龙江是国家重要商品粮基地，提高粮食产量和质量，对提高整个国民经济水平占有重要地位。
Rice grain shape including grain length, grain width, grain thickness, and grain length-to-width ratio is a major character affecting rice yield and quality.
水稻粒形性状包含粒长、粒宽、粒厚和长宽比， 是一类影响水稻产量和品质的重要性状。
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