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        Agricultural science and technology co., LTD. Hebei ark
        Address: 266 of shijiazhuang tianshan street party big innovation of science and technology industrial park building no. 1 floor layer 7
        Telephone: 0311-85902232
        Email address: fangzhoukeji@tom.com


      Autumn sowing crop fertilization technology
      Date:2014-01-09 Font Size: Medium Large

        At the moment, is the best season of vegetable crop fertilization. Adjust measures to local conditions according to the requirements of balanced fertilization of vegetable crops in autumn sowing crop fertilization, is a matter of the key measures of high quality and high yield of vegetable crops. Autumn sowing crop fertilization should grasp the following five main technical points:
        1. Increasing organic fertilizer application: comprehensive guarantee organic 1500 kg per acre, achieve the combination of utilizing land while maintaining it, loam increase two phase. Note: organic fertilizer application should be fully before pile of retting rotten.
        2. According to scientific application of chemical nitrogen fertilizer: at present, the commonly used chemical nitrogen fertilizer varieties mainly include ammonium bicarbonate, urea, ammonium chloride, etc. But should pay attention to, ammonium bicarbonate, ammonium sulphate, ammonium chloride, ammonium phosphate and ammonium nitrogen is unfavorable and calcium magnesium phosphate fertilizer, plant ash, lime and other basic fertilizer mix, otherwise it will produce ammonia volatilization, reduce fertilizer effect; When the use of urea in seed manure dont direct contact with the seeds, fertilizer and control seems to not more than 2.5 kilograms per mu, by urea contains two urine, high concentration can make the seed poisoning, affecting seed germination; Ammonium bicarbonate is unfavorable in soil surface for too long, avoid light, should be immediately after application of cover soil or proper depth, unstable, to the nature of the ammonium bicarbonate is quite volatile, the nutrient loss; All nitrogen fertilizer should be used with phosphate, potash fertilizer.
        3. With good special compound (mixed) fertilizer: special compound (mixed) fertilizer containing nitrogen, phosphorus and potassium for the growth of crops, such as micro various nutrient elements, compared with elemental chemical fertilizer or habits fertilization, yield could reach 10% - 15%. Become the preferred fertilizers in vegetable production.
        4. Correct selection of potassium dihydrogen phosphate, potassium dihydrogen phosphate is a kind of high content of high concentrated superior quality effective compound fertilizer, phosphorus and potassium 2 yuan the widespread use of vegetable crops of wheat, rape. Potassium dihydrogen phosphate as fertilizers, but also as a fertilizer. Make fertilizers, dosage of 7.5-10 kilograms per mu of vegetable crops, and cooperate with the nitrogen fertilization; Fertilizer mainly adopts spraying method, from seedling stage to crop growth later period all can undertake, spraying concentration was 0.4% - 0.5%, per 50 kg of potassium dihydrogen phosphate as water against the 0.2 kg - 0.25 kg, requests to dissolve, fully use along with it, and according to thes master spraying times, spray 2-3 times.
        5. The targeted use high-quality micronutrient fertilizer such as boron, molybdenum and zinc: autumn sowing crops, rapeseed, fruit trees such as xi boron crops, is sensitive to boron element. Although little crop requirements, but generally can be received after application of the role of "make the finishing point", "the icing on the cake". Rapeseed, fruit trees such as boron commonly used as basal, 0.5-1 kg per mu, also can use spraying on the leaf, mu with boron fertilizer 0.1 0.2 kg, 40-50 kilograms of water spray; Wheat molybdenum generally USES the seed, namely an acre of seed molybdenum fertilizer 12 g seed can, zinc is commonly used zinc fertilizer 1-1.5 kg as basal application directly.

      Address:Shijiazhuang 266 tianshan street party big innovation of science and technology industrial park building no. 1 floor layer 7 Phone:0311-85902232 Fax:0311-85907389
      Copyright:Hebei Fangzhou Agriculture Technology Co.,LTD Technical support:Pangu Network[Custom web site ]
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