Effect On The Yield And Quality Of Wettish-cultivated Water Dropwort In Different Cultivate Measures

Water dropwort is one of prymary aquatic vegetables in Jiangsu province, at present along with consumer awareness of health vegetables in the southern Yangtze River Delta region, represented the area of Water dropwort cultivation expanded rapidly. Wettish-cultivated water dropwort is rich in nutritional value, high health and medicinal flavor of the unique characteristics of vegetables, plant diseases and insect pests are relatively rare, almost non-use of pesticides, strong adaptability and easily survived, simple cultivation techniques , high economic efficiency, most pollution-free products for green vegetables. Therefore, the development of wettish-cultivated water dropwort has great potential and prospects are very broad application. Research on domestic water dropwort was few, wettish-cultivated water dropwort in-depth study was relatively few. Through this test wettish-cultivated water dropwort different cultivated measure to study its growth and its impact on the quality, look forward to developing wettish-cultivated water dropwort high yield and excellent quality technical services to producers. It's unclear that leafy vegetable harvest time and maturity time, through determine the dietary fiber content of wettish-cultivated water dropwort in different harvest time and explore the key index that lead to change old .Wettish-cultivated water dropwort from Jiangyin as trial materials, the thesis studied the effect on yield and quality of wettish-cultivated water dropwort cultivated by the different methods of transplanting, cultivation, harvesting methods. The results are as follows:1. The period of wettish-cultivated water dropwort for transplanting periods is not strict, the crops arrangements is relatively flexible .It's easy to rotate with other crops. If let the petiole as primary edible organ and harvested in the spring only once, it should be transplanted transplant density by10×10cm, no later November. The content of vitamin C, soluble protein, chlorophyll, mannitol, K, Ca, Mg and Fe of treat with transplanting in November 20th is maximal. If let the laminae and petiole as primary edible organ and harvested in the spring many times, it's best to transplanted and harvested as soon as possible by high-density.2. There is difference in various index of different edible organ in wettish-cultivated water dropwort, the content of mineral elements and hygienical component in laminae is higher than the one in petiole. It suggested that eat laminae with petiole of wettish-cultivated water dropwort. Different treatment cause a certain of influence in nutrient and hygienical components of wettish-cultivated water dropwort and health products, but it had higher content of the flavone and dietary fiber. Change the total dietary fiber content and crude fiber content of less variation larger. So speculate crude fiber content of products affected is rough taste of the old key indicators.3. Through determination N-P-K content of the whole wettish-cultivated water dropwort by treated differently and cultivated in nutrient solution, we have known that it's necessary to fertilize a large of K in order to ensure the normal growth of wettish-cultivated water dropwort. Usually the first stubble product from different transplanting times as a example, the target yield is 3000-6500kg/667m2, about fertilize N:9.72~19.8 kg,P2O5:2.28~13.5 kg,K2O:18.02~30.21kg。...