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研究发现，在南方温暖高湿地区，中高肥力土壤的水稻采用常规高产栽培，其营养生长往往过旺。旺长主要造成单茎蘖叶面积过大、茎基叶过长、分蘖相对偏弱、植株充实度变差、生育后期绿叶面积衰退加快，从而使单位面积有效穗数难以提高，穗型相对变小或者增穗效应小于减粒效应，抽穗期后干物质生产量下降，病虫为害相应加重，超高产难以实现。由此认为，营养生长过快过旺是南方温暖高湿地区水稻超高产栽培障碍因子。因此，在温暖高湿多肥条件下，应把水稻的不易旺长，作为一个超高产性状，并在超高产有种时进行走向选择。
The study found that in the warm and humid areas in the south, high fertility paddy soil using conventional high yield cultivation, its vegetative growth is often over-prosperous. Mongolian mainly caused by a single stem tiller leaf area is too large, the stem base leaf is too long, the tiller is relatively weak, the degree of fullness of the plant becomes worse, and the recession of green leaf area is accelerated at the later growth period, so that the effective panicle per unit area is hard to be increased. Small or increased panicle effect is less than the grain reduction effect, dry matter production after heading decreased, pests and diseases corresponding increase, super-high yield is difficult to achieve. Therefore, it is considered that excessive vegetative growth is an obstacle to the ultra-high yielding cultivation of rice in warm and humid southern areas. Therefore, under conditions of warm, humid and fertile soil, the rice should not grow wildly as a super-high yielding trait, and should be chosen as the species with the highest yield.