研究了不同土壤水氮条件下水稻冠层光谱反射特征与植株水分状况的量化关系。
Relationship between canopy reflectance characteristics and plant water status under different water and nitrogen levels was studied.
1987年测定了大豆植株水分状况的日变化和季节变化，分析了其基本特点，并比较了不同播期、不同叶位和不同耐旱性品种对它们的影响。
The diurnal and seasonal changes of water relationships in soybean plants were measured and analyzed in 1986-1987 in relation to sowing time, leaf position and varieties.
细胞汁液浓度、相对含水量对土壤含水量十分敏感，其含量可以反映植株叶片水分状况。
Cell sap concentration and relative water content of leaf change with the irrigation maximum chanage, that can show condition of plant water.
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