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1.适期播种。据试验调查,协优46作单季稻种植,播种期一般在5月10～15日为宜,播种过早,如5月初播种,表现早播超秧龄(40天),容易造成植株变矮,穗型变小,产量不高。一般掌握最适秧龄30～35天,6月10日前后移栽结束,才能夺取高产。 2.培育壮秧。壮秧是夺取高产的基础。据试验协优46随着秧龄的延长,每亩有效穗数减少,且穗型变小,因此,要严格掌握秧龄。据高产田块的经验,秧田采用施足有机肥,配施磷、钾肥。每亩秧田播种量不超过7.5公斤,在稀播匀播的基础上,二叶期进行删密补稀,秧苗株距掌握在10×10厘米左右,做到秧苗在
Sowing season. According to the experimental investigation, Xieyou 46 is planted as a single cropping rice. The sowing period is generally May 10-15, sowing too early, such as sowing in early May, indicating that early sowing over-seedling age (40 days) Smaller, yield is not high. Generally grasp the optimum seedling age 30 to 35 days, June 10 before and after the end of transplanting in order to seize high yield. 2. Cultivation strong seedlings. Strong seedling is to win the basis of high yield. According to the test of the Association 46 with the extension of the seedling age, the effective panicle per acre reduced, and panicle smaller, therefore, to strictly grasp the seedling age. According to the experience of high-yield plots, seedling applied enough organic fertilizer, with phosphorus, potash. Seeding per acre not more than 7.5 kg seedlings, evenly sowing in the thinning on the basis of the second leaf period to delete secret dilute, seedling spacing in the control of about 10 × 10 cm, so that seedlings in