Fertilizer types Fertilizers: Formula fertilizers are dominated by high-nitrogen, medium-phosphorus, and low-potassium fertilizers, ie NPK fertilizers are formulated as 25-10-5; 30-5-5 and other formula fertilizers. In addition, farmers purchase urea and diammonium phosphate in proportion to the application. Organic fertilizer: mainly organic fertilizer or bio-organic fertilizer.
Fertilizer application amount Sheng Orchard: that is, 8 to 12 years of orchard, each tree is applied (in the above proportion of good fertilizer) 3 to 4 kg, 13 years or more of the fruit tree is applied 4 to 5 kg. Orchard in the beginning: 5 to 7 years of tree, each tree to use (in accordance with the above ratio of good fertilizer) 2 to 3 kg. Four-year-old trees are used for each application (mixing good fertilizer in the above proportion) 1.5 kg. Saplings: Newly planted saplings Each application of 0.2% diammonium phosphate + 1 kg organic fertilizer can also be applied without sprouting.
The application method is beyond the two-thirds of the canopy, that is, the Shengguoyuan is 60-100 cm away from the main stem of the tree, and the soil can be covered with a hole or a radial groove.
Management after fertilization According to recent monitoring results of soil moisture in the county by the Meixian County Agricultural Technology Center in Shaanxi Province, the relative water content in the surface soil of the county is 60% to 65%, and the relative moisture content in the deep layer is 61% to 67%. The soil moisture content is insufficient. After the application of bud germ fertilizer before March 25th, it can be irrigated immediately and the amount of irrigation water per mu should not exceed 40 square meters. Fertilize after March 25 without irrigation, so as not to affect the normal germination of kiwifruit.
romatographic and use double-antibodyromatographic and use double-antibodysandwich method to detect antigen. Whenthe concentration of antigen in specimen ishigher than the minimum detection limit, theviral antigen will form complexes withlabeled antibodies first. Under chromatogra-phy, the complexes move forward along thenitrocellulose membrane till captured bypre-coated monoclonal antibody ofindetection zone.Through the visible color tointerprete the test results.
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