Jindao 1229
It is a new japonica rice variety bred by Tianjin Rice Research Institute. The whole growth period is 145days, the plant height is 110-120cm, the tillering ability is strong, the panicle rate is high, the average spike rate is 124grains per panicle, the seed setting rate is 85% Mel 91%, and the 1000-grain weight is 26-27g. Medium resistance to rice blast, high resistance to rice false smut, saline-alkali resistance and medium lodging resistance. According to the results of regional test and production test in 1997 and 1999, the average yield per unit area is 478.3kg/667m2.
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Prevention and control of yellowing of wheat seedlings before winter due to seedling treatment
After sowing and emergence of barley and wheat, different degrees of yellowing often occur before winter due to the influence of bad conditions and cultivation management. There are many reasons for the yellowing of wheat seedlings before winter, such as drought, insect pests, nitrogen deficiency and potassium deficiency, which should be caused by different causes to promote the transformation from yellow wheat seedlings to strong winter seedlings. Drought yellowing such as winter dry years, long sunny without rain, soil hardening, lack of moisture, root extension difficulties, often lead to wheat seedling leaves yellowing, slow growth and delayed tillering stage. Wheat seedlings that are dry and yellowing due to lack of water should be watered in time to resist drought. Drought resistance
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Five ways to prevent cold from freezing of wheat seedlings
When the severe winter comes, it is an important guarantee for a bumper harvest to do a good job in preventing winter and cold weather of wheat and other overwintering crops. According to different fields, the following five methods can be used to prevent freezing and protect seedlings. First, there are some varieties with strong spring character of sowing grass and protecting seedlings, which are relatively late in sowing, sparse in emergence and less in tillers. For such fields, they should be covered with wheat straw, rice straw and other crop straws to keep warm, promote tiller growth, prevent freezing and strengthen seedlings, so that wheat seedlings can survive the winter safely. Second, fertilizer and water irrigation on the fields with shallow roots and few tillers.
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