Effects Of Commercial Organic Fetertilizer On Rice Growth And Yield

The applied doses and methods of commercial organic fertilizers used in rice field with microplot test was systemically studied, by the techniques of balancing the use of commercial organic fertilizers with normal fertilizer, the qualities of the rice after using the commercial organic fertilizers and the releasing method of the commercial organic fertilizers in rice field were also discussed. All the results are summarized as followed:1. After making organic nitrogen as the main nitrogen resources for the rice's growth, it would be postponed rice's tiller, affected leaves appearance and the growth of the whole plant, reduced the available number of spikes, and finally affected the yield.2. Additional commercial organic fertilizers under certain amount of nitrogen fertilizer used can significantly increased the yield, and increasing the use of commercial organic fertilizers resulted in the increase of trills of individual plant,earbearing tiller percentage and the total yield. The midding fertility area the recommended doses were respectively 4500-6000 kg/hm~2 commercial organic fertilizers and 225-255 kg/hm~2 nitrogen fertilizers.3. Commercial organic fertilizers were easy to use and more efficient fertilizers for rice.4. Different rice crops for rotation require different doses of commercial organic fertilizers and nitrogen fertilizers, wheat and rape stubble rice need more than 6000 kg/hm~2 organic fertilizers, 240 kg/hm~2 nitrogen fertilizer to take effect. After increasing the basic soil fertility, treated with 210-270 kg/hm~2 commercial organic fertilizers and nitrogen fertilizers had no significant effect on the increase of the yield.5. The more commercial organic fertilizers were used, shorter the length between the second and third nods was. Commercial organic fertilizers could improve the anti-lodging ability.6. Fertilized with commercial organic fertilizers could increase the amount of organic matter, rapidly available phosphorus and rapidly available kaium in the soil, reduce soil volumetric weight and amount of ammonium nitrogen, improve soil properties.7. Using of commercial organic fertilizers could improve the quality of rice, increase rate of winnowed paddy, reduce the rates of Chalky rice number, Chalk degree and amylase, and the rice was more tasty.