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Methods for Extending Rice Seedling Age and Key Points for Preparing to Transplant Rice While Waiting for Rain as a Drought-Resistance Measure
In a normal year, the seedling age for machine-transplanted rice is about 30 days, about 40 days for seedling-throwing rice, and about 50 days for water-raised seedlings. If the water for transplanting comes late, the seedling age must be extended to more than 60 days in order to wait for water before transplanting. First, sow sparsely to cultivate strong seedlings of extended age. That is, by expanding the area of the seedling-raising bed and reducing the sowing rate per square meter, the tillering-stagnation period of the seedlings is prolonged, which can effectively increase the seedling-age flexibility of seedlings sown early at the proper time and improve seedling quality; this can both raise per-unit yield and resolve the contradiction of having no water for transplanting in the early period.
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Key technical points for using the potato variety "Kao Wait Te"
Variety source: Originally named Calwhite, also known as A76147-2, it was selected in the United States from the hybrid progeny of Pioneer x BC8370-4, and in 1997 was examined and approved for promotion by the University of California, the Idaho Experiment Station and the United States Department of Agriculture. Characteristics: upright plant type, vigorous growth, green stems and leaves, plant height about 70 cm; corolla belongs to a mid-season variety, about 80 d from emergence to maturity. The plant has strong stress resistance, resistance to internal and external infestations such as growth cracks, skinning, hollow heart and heat necrosis,
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