The Effect Of N,P,K Level On The Growth Of Young Walnut And It's Physiology Index

The effect of different N, P, K levels on the 3 years Qingxiang and Liaoning 1 walnut were studied by outside in this experiment. On the basis of Biology index and Physiology index, the experiment had a fit fertilizer amount for Dingzhou's young walnut. This experiment probed that the different effect of N, P, K on the young walnut. The main results were as follows:1. The young walnut of Qingxiang and liaoningi N content was leaf significantly higher than root, root was significantly higher than shoot; P content was root significantly higher than leaf, leaf was significantly higher than shoot; K content was leaf significantly higher than root and shoot.2. The effect was not distinctness for shoot length of add N, P fertilizer. At the same variety walnut the results of different N, P levels was not distinctness; The K3 level was good for Qingxiang; Between different variety walnut's shoot length the Qingxiang was higher than Liaoning 1.3. The root and biology yield of Qingxiang was higher than Liaoningl; Add N, P, K fertilizer was good for root yield. P2, K2 levels were highest; N3, P2, K2 levels were best for biology yield.4. The chlorophyll content and photosynthesis of Qingxiang was higher than Liaoning1;The changed of chlorophyll content and photosynthesis was same. N3, P2. K2 levels were best for chlorophyll content and photosynthesis.5. The SOD activities of Qingxiang were higher than Liaoning1; Add fertilizer SOD activities were rising. N3, P2, K2 levels were best. POD activities were comparatively complex. The regular was unobvious.6. On the basis of Biology index and Physiology index, the experiment had a better levels were N3, P2, K2.