A kind of foliar fertilizer for promoting early growth and development of cotton and its preparation and use method
A growth and development, foliar fertilizer technology, applied in fertilization methods, botanical equipment and methods, applications, etc., can solve the problems of rare foliar fertilizers, low cost performance, unsatisfactory effects, etc. Effect of leaf area, promotion of main stem growth, easy operation
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[0016] The present invention will be described in further detail below.
[0017] 1.1 Test materials and soil conditions
[0018] The cotton variety tested was Zhongmian 79. The field experiment was carried out in 2013 at the South Field of the Cotton Research Institute of the Chinese Academy of Agricultural Sciences in Baibi Town, Anyang City, Henan Province. The test field is a multi-year continuous cropping cotton field, loamy fluvo-aquic soil, medium fertility, 0-20cm soil contains 1.51% organic matter, 0.083% total nitrogen, available phosphorus (P 2 o 5 )30mg·kg -1 , available potassium (K 2 O) 158mg·kg -1 .
[0019] 1.2 Experimental design
[0020] Foliar fertilizer formula ingredients: urea, potassium dihydrogen phosphate, zinc sulfate, gibberellin. Two formulations were designed, formulation 1: urea 1% + potassium dihydrogen phosphate 0.5% + zinc sulfate 0.1% + gibberellin 20mg·L -1 ; Formula 2: urea 1% + potassium dihydrogen phosphate 0.5% + zinc sulfate ().1...
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