glomerata to fertilization treatments with differing N∶P∶K ratios in was studied at an experiment farm of Baoxing,in the Baoxing county of Sichuan,from 2001-2003.The results indicated that the optimum applied equilibrium fertilization was 3∶1∶2(N 120 kg/hm~2+P 40 kg/hm~2+K 80 kg/hm~2).
HTML(Dreamweaver. Flash. Fireworks)technology, database (Access SQL SERVER)technology, TCP/IP protocol anthology, Java technology, network geography information system (WebGIS)technology, crop equilibrium fertilization technology were adopted and the specialized web site of Xinjiang soil manure was developed.
HTML technology, database technology (SQL SERVER), TCP/ IP protocol anthology, Java technology, Net technology, network geography information system (WebGIS) technology and crop equilibrium fertilization technology were used to develop the cross platform agricultural WebGIS system at the county level, which provides a support to the automated management for the agricultural geography information.
Applying the Geoestatisitics, we analyzed the spatial variability of soil nutrients of the 125th regiment and affirmed the instructive function of the equilibrium fertilization technology.
The test shows that the technology of equilibrium fertilization can increase yield than regular fertilization in early and late rice,among them,the early rice can increase yield by 9.9%,late rice by 9.3%.
To provide reference dara of soil supplying nutrient capability for equilibrium fertilization technology,multi-sites expriments had being carried out from 1987 through 2005 year in Maganni paddy fields consistent in fertility.
A series of experiments were conducted for several years to study mineral nutrition and fertilization tech-nique of sweet orange. It revealed the relationship between nutrient properties and equilibrium fertilization,and disscussed the changing law of plant nutrition during one year. The results showed that the important pe-riods of nutrition were the period of spring shoots turning green and the period of nutrients storage in autumnand winter. On alkaling purple soils, the chlorosis of or...
The effects of N.P.K.equlibrium fertilization on seed and quality formative law were studied with CV.Ydan No.13.The results are as follows:The variable tendency of the seed fresh and dry weight accumulation of both N.P.K.equilibrium fertilization and no applying is similar.The fixed quantity relation between the tendency of accumulation and the time after pollinating is simulated well by the logistic equation .With the time after pollinating,the volume and content of water of seed changes ...
According to the status of soil fertility, the nutrition natives of Citrus grandis, and the characters of fertilizers and manures, experiments of equilibrium fertilization were conducted to study soil and crop nutrition with fertilization for three years in Meizhou. A series of special fertilizers, whichadapt application to Citrus grandis at various periods were made up. That showed the effects of high yield and good quality of Citrus grandis by the application in Meizhou.