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去年我们试验了对棉花喷施微量元素的效果,喷施时间为7月28日、8月5日共两次,喷施浓度硼酸为0.2％,钼酸铵0.1％,硫酸锰0.1％,以喷清水为对照。从初步结果看出都有一定增产作用,效果最好的是硫酸锰。喷硫酸锰后,单株成铃数比对照多2个,脱落率减少9.5％,增产35.6％。钼酸铵增产效果次之,硼酸又次之。这个试验尚须继续进
Last year we tested the effect of spraying trace elements on cotton. The spraying time was twice on July 28 and August 5. The spraying concentration of boric acid was 0.2%, ammonium molybdate 0.1% and manganese sulfate 0.1% Spray water as a control. From the preliminary results have seen a certain increase in production, the best is manganese sulfate. After spraying manganese sulfate, the number of bolls per plant was more than that of the control, the rate of shedding decreased by 9.5% and the yield increased by 35.6%. Production of ammonium molybdate followed, followed by boric acid. This test must continue