棉花膜下滴灌栽培全攻略（Cotton mulch drip irrigation cultivation strategy）.docVIP

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棉花膜下滴灌栽培全攻略（Cotton mulch drip irrigation cultivation strategy）.doc

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棉花膜下滴灌栽培全攻略（Cotton mulch drip irrigation cultivation strategy）

棉花膜下滴灌栽培全攻略（Cotton mulch drip irrigation cultivation strategy） Cotton mulch drip irrigation cultivation strategy.Txt Cotton mulch drip irrigation cultivation strategy First, the preparation before sowing 1, choose varieties: according to the climate and soil conditions, choose the growth period of 130 days, resistant to Fusarium wilt; compact plant type, short branch I ~ II type, a small blade angle; moderate small, short petiole, Deep-Fried Dough Sticks is not easy to happen; bell is strong, good fiber quality varieties. Such as 9665, JD ~ 3, Feng cotton 8, wine cotton 2, etc.. 2, deep fertilizer: fertilizer dosage is 8 ~ 12 kg of pure nitrogen, phosphorus pentoxide 7 ~ 10 kg, 3.5 kg k2o. When will the farm manure, stubble ploughing deep plowing superphosphate. Spring combined with land will be 20 kilograms of ammonium phosphate, diammonium phosphate 20 ~ 23 kg, 6 ~ 10 kg potassium sulfate mixed deep application of fertilizer. 3, chemical weeding: mulching before sowing per mu 48% Butralin ~ 100 acetochlor 150 ml or 50% 80 grams, add water 2 ~ 3 kg, 50 kg of sand mixing, evenly spread into cotton, shallow buried scraper to suppress mulch sowing. Two, sowing 1, do a good job of machinery preparation: before sowing, the machine should be fully checked and debugged, should install the drip irrigation capillary device, to achieve safe use. 2, suitable sowing: when 5 cm ground temperature stabilized through 10 degrees, as the beginning of sowing. Normal year April 15 ~ 20 days for the best sowing date, 6 ~ 8 seeds per planting, sowing depth of 2 ~ 2.5 cm, 1 cm in thickness of the overlying soil. 3, sowing methods: using a membrane two tube water-saving technology. 145 cm film in 4 rows of cotton planting specifications for 30+60+, 30cm, membrane spaced 45 cm spacing of 15 cm, 1.1 ~ 13 thousand lines per mu. The drip irrigation belt is paved with film laying and sowing, and the drip irrigation belt is arranged in the narrow row, and the hair of the drip irrigation belt f