攀西地区早春作物生育规律研究

攀西地区下湿田增种早春作物，是充分利用春季光温资源，提高复种指数的有效措施。测定5种早春作物的全生育期、叶面积指数、干物质积累与净同化率、茎叶中蛋白质、可溶性糖含量等生理指标和产量、产值。不同作物比较试验表明，攀西地区下湿田早春作物以种植玉米、西瓜、马铃薯的产量和产值较高。

Study on the Regularity of Development of Early Spring Crops in Panxi Region

Increasing planting early crops on the wetland is an effective measure to fully utilize the spring season resources of temperature or light and raise multiple crop index.We measured five early spring crops' physiological targets or yield and output value.These physiological targets include total growth period,leaf area index,dry matter accumulated and net assimilation rate,protein and soluble carbohydrate content in the early spring crops.The comparative experiments of different crops showed that it was better that maize,watermelon and potato were planted on the wetland in Panxi Region,because those had higher yield and output value.