Calcium fertilizer special for wheat, its preparation and method for cultivating wheat
A calcium fertilizer, wheat technology, applied in the directions of botanical equipment and methods, fertilization methods, applications, etc., can solve problems such as unfavorable absorption, doubts about safety and controllability, and cannot significantly increase the calcium content of grains, and achieves easy absorption. Effect
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Embodiment 1
[0030] The wheat field of Dingyan Town, Rugao City, Jiangsu Province was selected as the experimental field, and the cultivated wheat was Yangmai No. 16, which is widely planted in the Suwan Plain. , Keep a 1-meter isolation zone around each community. Apply 15kg / mu of medium-nitrogen and high-phosphorus fertilizer in the base fertilizer uniformly, such as N:P 2 o 5 :K 2 O=15:15:1. At the tillering and jointing stage, the topdressing nitrogen fertilizer is mainly 8-12kg of urea per mu. Select one of the plots as the control group for conventional wheat cultivation, and the rest of the calcium-added groups adopt the same cultivation technique as the control group. During the harvest period, collect wheat grains, measure the calcium content in them, and measure the calcium content of the control group wheat grains. It is 228.5mg / kg.
Embodiment 2-10
[0032] First, mix calcium salt, kaolin, diatomaceous earth, sulfur, sodium humate, and α-naphthalene acetic acid according to the ratio in the table below, pulverize, mix, heat to 150°C-180°C for 1 hour, and then ultrafinely pulverize The powder with a particle size of less than 50 μm, so that the proportion of nano-scale is 10-25%, is granulated on a disc granulator, and a liquid binder is sprayed during disc granulation (the liquid binder is carboxymethyl fiber 30-60% aqueous solution fertilizer, the dosage is 0.3-0.5% of the total amount of fertilizer), after the fertilizer grains are stabilized, pack them into bags, seal them, and put labels on them for later use.
[0033] Sprinkle each small bag of calcium fertilizer evenly into the field plots at the early stage of tillering, collect wheat during the harvest period, and detect the calcium content of the grains. Same gradient calcium experiment:
[0034]
[0035]
Embodiment 8-22
[0037] First, add a certain amount of calcium nitrate (see the fertilization amount in the table below), kaolin, diatomaceous earth, sulfur, sodium humate, and α-naphthalene acetic acid in a weight ratio of 1 to 16:11:3:5:5:0.5 Mix, pulverize, mix evenly, heat to 150-180°C for 1 hour, and then ultrafinely pulverize into a powder with a particle size of less than 50 μm, so that the proportion of nano-level is 10-25%, and make it on a disc granulator Granules (spray liquid binder during disc granulation, the amount of liquid binder is 0.4% of the total amount of fertilizer), set aside.
[0038] Calcium fertilizer was used as base fertilizer, tillering fertilizer, and booting fertilizer (see the table below for dosage), and the total calcium content in the grains was detected after the wheat matured and harvested, as shown in the table below:
[0039]
[0040]
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