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我市郊区共种植小麦十万零五千亩,其中轻沙地两万亩,沙地三万余亩,每年均有不同程度的干热风发生,对小麦危害严重。一般减产1—2成,重者可达三成以上,因此积极采取措施,予防干热风危害,是获得小麦稳产,高产的重要问题。通过20个点调查,其增产幅度为0.9—25％。亩平均增产42.5斤,平均增产率为7.6％,千粒重平均增加2.1克,亩投资为0.83元,亩净收入3.68元,为投资的4.4倍。防御干热风效果分析: 1、喷磷酸二氢钾的小麦有五分之一的试点比对照发绿、蜡质层较厚、生长健壮、落黄
The suburbs of our city planted a total of 105,000 acres of wheat, of which 20,000 acres of light sand, sandy land more than 30,000 acres, each year have different levels of dry and hot winds, a serious harm to wheat. The general reduction of 1 to 2 percent, in severe cases up to 30% or more, so actively take measures to prevent the hazards of dry hot air, wheat is an important issue of stable yield, high yield. Through 20 points survey, the yield increase of 0.9-25%. The average yield of mu is 42.5 kg, the average rate of increase is 7.6%, the average weight of thousand kernels is 2.1 grams, the investment of mu is 0.83 yuan, the net income of mu is 3.68 yuan, which is 4.4 times of the investment. Defensive dry and hot wind effect analysis: 1, one-fifth of potassium dihydrogen phosphate wheat trial than the control of the green, thick waxy layer, robust growth, falling yellow