Onions and onions are growing as a spice crop. In the production of onions and onions, due to the improper selection of herbicides, the seasons are reduced or the harvest is not harvested. In the pollution-free production of onions and onions, it is very important to use herbicides. Polythene polymer compound waterproof membrane Bituthene,Cementitious Waterproofing,Polythene Membrane,Waterproofing Systems Myriad Corporation , http://www.wxfoil.com
When onion is planted, 50% of the water can be sprayed with 50% to 60 kg of water per acre. When the onion seedlings are cultivated, 33% of pendimethalin (grass-pass) emulsifiable concentrate can be used per acre, or 150% of 48% sec-butyl spirit (dileamine) emulsifiable concentrate per acre.
Before the onion is transplanted after the soil preparation, it can be sprayed with 24% oxyfluorfen (Gol) 66-72 ml per acre and 50-60 kg of water. Before the whole onion is transplanted after the preparation of the ground, 100-150 ml of 48% trifluralin can be used per acre, or 200 ml of 48% sec-butyl spirit (milamide) per acre, and spray 50-60 kg of water.
After the onion is planted in the 3-4 leaf stage, 24% of the fruit can be used in 66-72 ml per acre, and 50-60 kg of water can be sprayed. After the onion is transplanted, it can be used with 33% weeding emulsifiable concentrate 100-150 ml per acre. Or use 50% Liguron WP 100g per acre and spray 50-60kg of water.
In order to improve the effect of applying herbicides on onions and onions, it should be noted that the seedlings should be applied before emergence after sowing. After transplanting, the weeds should be applied before emergence of the seedlings. Onion is prohibited in the 2 leaf period, and the fruit is used carefully before the 3 leaves. When the temperature is low, apply it at noon on a sunny day, and apply it in the morning or afternoon when the temperature is high. Sandy soil should not be applied to the grass.
The key to cultivated spice crops is the use of herbicides.