Irrigation cracking sweet potato sweet and sweet
Lysine Hydrochloride，L-Lysine Feed Additives，Animal Feed Secondary Element Co., Ltd. , http://www.nsorganicfertilizer.com
August and September are the expansion of sweet potato roots. The application of cracking fertilizer when cracks appear in the local topsoil can promote the expansion of sweet potato roots. Can be used to infuse a lot of fertilizer, now its usage and dosage are introduced as follows: human excreta with 750 to 1000 kg per mu, 500 kg of clean water, mixed after about 5 pm irrigation; potassium dihydrogen phosphate per acre 500 grams, dissolved in warm water and then into the 500 kilograms of water, and then poured in the cracks; urea with 2.5 kilograms per acre, with a small amount of water dissolved 500 kilograms of water irrigation; planting 100 kilograms of acre per acre, into the appropriate amount of water Let it soak for 5 hours, then filter out impurities and pour 500 kilograms of water. It should be noted that when applying fertilizing solution, the action should be slow. Immediately after the fertilization solution is finished, the cracks shall be sealed with fine surface soil so as to avoid volatile fertilizer solution. In the late stage of sweet potato growth, 3 to 5% of superphosphate aqueous solution or 0.3% of potassium dihydrogen phosphate solution 75 to 100 kilograms can also be applied to the roots per mu.