Do a good job of rapeseed spring tube promote high yield
In early spring, with the temperature rising, the increase of rainfall, the decomposition of fertilizers, and the formation of a large number of flower buds, the main stem grows continuously and the root system grows. The flower buds continue to differentiate and reach a peak. At this time, management techniques were not in place, rapeseeds did not germinate, nutrients were small, and pods were few. Late yields were low and premature. If there are too many nitrogen fertilizers in the spring, the growth is too prosperous, the lines are closed prematurely, the fields are shaded, the pests and diseases are heavy, the stalks are tender and weak, and lodging easily occurs, and the yield is not high. Therefore, it is the key to promoting high yields to look at the growth of rape in the spring. First, do a good job of "three mornings" "Three early" cultivating as soon as possible, early irrigation back to Qingshui, early follow-up bud Feifei. Thaw the soil in spring, promptly scoop up, remove the compaction, loosen the soil, remove the heart and earth seedlings, clear the field weeds and diseases, insects, dead leaves, increase the temperature, and promote early-onset seedlings. Immediately returning to Qingshui early, to late sowing or lack of land in the rape field in the end of February to early March combined with 6.5 tons of urea irrigation urea, appropriate partial application of weak seedlings to promote its transformation and upgrading. Fertilizer can not be excessive, too late, so as not to cause excessive growth of nutrients, greedy green late, late lodging. For the fields with good sensation, full fat, and adequate winter fertilizer, timely cultivating can be done. The second is the timely prevention of pests and diseases In spring and autumn, when temperatures rise slowly, pests and diseases are prone to occur. The main diseases are virus disease, sclerotia, white rust and downy mildew; the main insect pests are aphids and stem stalks. The third is to spray fertilizer B. napus hybrids are more sensitive to boron and phosphorus. Phosphorus deficiency affects its nutrient accumulation, poor grain plumpness, and increased seed pods. Boron and phosphorus should be sprayed in mid-April. 100 grams of borax and 100 grams of potassium dihydrogen phosphate, 1000 grams of urea omethoate, or 50 milliliters of phoxim 50 kg of water are added to dissolve the spray. Spray on sunny afternoons. YT-S350 YT-S350 Shenzhen Sunshine Technology Co.,Ltd , https://www.shenzhenyatwin.com