Two New Types Of Fertilizer Effect On Rice Growth And The Application Effects Of The Research

Due to the use of fertilizer has some unreasonable factors, such as high N application rate, NPK fertilizer proportion imbalance, farmers lack the correct guidance and blind fertilization fertilizer, nitrogen loss serious, low utilization rate of fertilizer, rice production potential and the efficiency of soil and other natural resources is not due to play, restrict the improvement of rice yield, ultimately affected the economic benefits of farmers and brings a series of ecological environment problems.The development of new rice special fertilizer and use of rice growth and yield quality has important influence, at the same time improve the fertilizer utilization ratio and reduce the use of chemical fertilizers. Through field experiment, this study compared with other two kinds of conventional compound fertilizer, analyzes the two kinds of new type of rice specific fertilizer on rice field soil physical and chemical properties and the effect of different fertilizer application on rice growth and development in the typical stages were measured and the effect of simultaneous determination of different fertilizer applying different content on the influence of the rice field in the soil microbial activity. And comprehensive comparison of fertilizer input, crop production economic benefit indexes, objectively evaluate the efficacy of the new fertilizers and fertilizer efficiency, the results of the study on improvement of yield and quality of rice is of great importance, at the same time to provide theoretical basis for the region to promote new fertilizer. The main research conclusions are as follows:(1) The new rice specific fertilizer on soil physical and chemical properties in the region, in the ammonium nitrogen content in rice soil during whole growth period appear gradually reduce the trend of the field water ammonium nitrogen showed a trend of gradually reduce; In rice rapidly-available potassium content in soil during whole growth period showed lower after rising trend, then the field water available potassium showed a trend of gradually reduce; In paddy soil during whole growth period showed effective phosphorus content trend gradually reduce; Testbed is neutral, soil organic matter content in 13.58 g/kg, in rice mature period, the soil pH value are showing a weak acid, below before planting, organic matter content changed little compared with before planting.(2) New rice fertilizer could promote the growth of rice root system and aboveground and, in turn, promote the growth of rice, and 300 kg/ha of specific fertilizer 1 new rice processing and rice fertilizer 2 a processing of rice root system promoting effect is more obvious; In rice jointing stage, the treatment group of rice plant height is higher than the control group, in which rice fertilizer 2 a deal with the highest, reaching 70.00 cm;300 kg/ha of new rice fertilizer 1 treatment and urea 2 a new rice rice effective tiller number significantly higher than other treatment and the control group.(3) New rice fertilizer could promote the photosynthesis of rice, mainly reflected in can improve rice leaf SPAD values and improve the photosynthetic rate. The whole growth period of rice leaf SPAD values showed a trend of increase after the first reduce, reach maximum at the booting stage, tillering stage of rice leaf SPAD values red rice pilot fat 2 treatment up to 40.21, new rice booting stage specific fertilizer treatment of 1 to 5 were significantly higher than control treatment; In the booting stage of rice, 300 kg/ha of new rice fertilizer treatment 1 and fertilizer 2 a new rice photosynthetic rate value is higher than other processing, booting stage of rice leaf photosynthetic rate significantly higher than the jointing stage.(4) New rice specific fertilizer can increase dry matter accumulation of rice, the fresh weight during whole growth period of rice appear gradually increase finally down, dry weight of gradual increase; In rice tillering fertilizer 2 a new rice processing fresh weight and dry weight of the largest, 300 kg/ha of new rice fertilizer processing fresh weight and dry weight of second, jointing stage in rice fertilizer 2 a new rice processing fresh weight, the largest 300 kg/ha of new rice fertilizer processing dry weight, the largest in the booting stage of rice 300 kg/ha new specific fertilizer processing fresh weight and dry weight of rice is the largest.(5) New rice fertilizer can increase rice yield, the measured output of 300 kg/ha of new rice fertilizer and fertilizer 2 a new rice processing is the highest, reached 16267 kg/ha and 17303 kg/ha, compared with the control processing the measured average production yield rate reached 7.47 and 14.31%.(6) The new fertilizer treatment significantly improves the rice rhizosphere microbes activities, including treatment 1 and 4 have bigger influence on the bacteria in the soil, treatment 3 and 4 have bigger influence on the actinomyces and fungi.