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腐植酸硼(简称腐硼、BHA)是腐植酸钠和硼酸按一定比例配制而成的肥料。本文拟就其对棉花的农艺性状、品质、增产效果及施用期进行研究,为大面积推广应用提供科学依据。 一、试验方法 试验在本所湖积物发育的潮砂土上进行,肥力中等,pH值为8.19,有效硼0.35ppm,小区面积0.035亩,随机排列,重复三次。供试腐硼肥中含HA(腐植酸)14.3％、H_3BO~3(硼酸)71.4％,硼酸含纯H_3BO~3 99.5％,供试品种为赣棉78—7。棉叶中硼的测定用姜黄素比色法。试验设计有二种方案:
Humic acid boron (referred to as rotten boron, BHA) is humic acid and boric acid prepared according to a certain percentage of fertilizer. This paper intends to study its agronomic traits, quality, yield-increasing effect and period of application, providing a scientific basis for large-scale popularization and application. First, the test method Test in the tide sand soil developed by the lake sediments, medium fertility, pH value of 8.19, effective boron 0.35ppm, plot area of 0.035 acres, random arrangement, repeated three times. The test fertilizers contained 14.3% of HA (humic acid), 71.4% of H 3 BO 3 (boric acid), pure H 3 BO 3 99.5% of boric acid and 78-7 of the tested cotton. Determination of boron in cotton leaves with curcumin colorimetric method. There are two experimental design options: