Double cropping rice yield increase method
A technology for double-cropping rice and early rice, applied in fertilization methods, botanical equipment and methods, rice cultivation, etc., to achieve the effects of increasing leaf area index, increasing yield, increasing effective panicle number and seed setting rate
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[0019] From 2016 to 2017, a double-cropping rice field experiment was carried out at Huayuan Village Farm, Yanxi Town, Liuyang City. The test materials were Zhongzao 39 (early) and Taiyou 390 (late); the test soil was typical red loam: pH=6.22, Total nitrogen 1.23g / kg, total phosphorus 0.52g / kg, total potassium 16.37g / kg, organic matter 19.72g / kg, alkaline nitrogen 124.20mg / kg, available potassium 99.03mg / kg, available phosphorus 10.92mg / kg;
[0020] Four green manure mixed cropping treatments were set up in the experiment: milk vetch alone (As), milk vetch mixed with vetch (AR), milk vetch mixed with ryegrass (AL), milk vetch with ryegrass and ryegrass Mixed cropping (ARL), with the winter fallow treatment as the control treatment (CK); the sowing rates of the green manure crops in the first 4 treatments were: Chinese milk vetch 37.5kg / hm 2 , milk vetch 22.5kg / hm 2 + Full garden flowers 6kg / hm 2 , milk vetch 22.5kg / hm 2 + ryegrass 15kg / hm 2 , milk vetch 22.5kg / hm 2 + Gar...
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