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长治市北石槽大队,1981年以来运用叶龄指标促控法管理小麦,连续三年增产。1981—1982年增产10%以上,1983年气候特殊,增产2%。1981年有35亩用叶龄促控法管理的高产田,平均亩产955斤,比对照(一般管理)增产36%。三年来,该队采用“双马鞍型”管理法,具体做法可归纳为三促两控措施。一促在冬前,当幼苗长到三叶一心,幼苗进入分蘖阶段以后,及时浇盘根水,施分蘖肥,一般亩追茅粪40—50担,随水流入田间,对生长瘦弱的三类苗,亩追茅粪50—70担,促弱苗赶队,培育壮苗,增加亩穗数。越冬前,立冬一小雪之间普浇冬水,满足幼苗冬春用水,做到冬水春用,预防春旱。一控措施在
Changshu City North stone tank brigade, since 1981, the use of leaf age indicators to promote control of wheat, for three consecutive years yield. 1981-1982 increased by 10% or more, in 1983 a special climate, an increase of 2%. In 1981, there were 35 mu high-yield fields under the control of leaf age, with an average yield of 955 jin per mu, an increase of 36% over the control (general management). In the past three years, the team adopted the “double-saddle-type” management approach, which can be summarized into three measures and two control measures. A promote before winter, when the seedlings grow to clover heart, the seedling into the tillering stage, timely pouring root water, fertilization tillering, the general acres of Mao manure 40-50 Tam, with the water into the field, the growth of thin three Miao, Mau chase 50-70 take the burden, and weak weak team to catch the team, nurturing strong seedlings, increasing acres of spikes. Before winter, the beginning of winter, a small amount of water between winter and spring, winter and spring to meet the water seedlings, so winter water spring, spring drought prevention. A control measures at