A look at the crop type fertilization bean legumes have nitrogen-fixing root nodules, which require less nitrogen and phosphorus; root vegetables and potato dishes require more potassium; leafy vegetables require more nitrogen; fruit and vegetable three elements should be applied in appropriate amounts.
Second, when climate and fertilization temperatures are high and rainfall is high, fertilizers break down quickly and are easy to lose. Fertilizers are applied in small quantities for many times. Low temperatures and low rainfall require early application of multiple facilities.
Three to see the soil fertilization black loam, light loam soil fertilizer and fertilizer is good, it is appropriate to apply more; sandy loam soil fertility is poor, should be less than several times.
Fourth, see fertility fertilization vegetables fertilization is generally "a small seedling period, stable flowering period, fruit weight;" The early stage of nitrogen fertilizer, nitrogen and phosphorus in the middle, the late combination of nitrogen, phosphorus and potassium; early maturing varieties should be applied early, late maturing varieties should be late It is necessary to promote control and integration so that the seedling period will grow steadily.
Five fertilizer fertilizer farm fertilizer effect long, comprehensive nutrition as a base fertilizer, chemical fertilizer effect quickly as top-dressing; urea as top-dressing, should be applied 4 to 6 days in advance, phosphorus mobility is small, as the base fertilizer, seed fertilizer, topdressing can be, but for When applying fertilizer, it is necessary to open the ditch and apply it to the root layer.
Six fertilize fertilization ammonium sulfate, ammonium bicarbonate, human fecal urine is an acidic fertilizer, can not be mixed with plant ash; ammonium chloride, potassium chloride can not be used in potatoes and other bogey fluorine crops; urea as the concentration of root dressing can not exceed 1 % is appropriate.
Author: Chen Maochun
Second, when climate and fertilization temperatures are high and rainfall is high, fertilizers break down quickly and are easy to lose. Fertilizers are applied in small quantities for many times. Low temperatures and low rainfall require early application of multiple facilities.
Three to see the soil fertilization black loam, light loam soil fertilizer and fertilizer is good, it is appropriate to apply more; sandy loam soil fertility is poor, should be less than several times.
Fourth, see fertility fertilization vegetables fertilization is generally "a small seedling period, stable flowering period, fruit weight;" The early stage of nitrogen fertilizer, nitrogen and phosphorus in the middle, the late combination of nitrogen, phosphorus and potassium; early maturing varieties should be applied early, late maturing varieties should be late It is necessary to promote control and integration so that the seedling period will grow steadily.
Five fertilizer fertilizer farm fertilizer effect long, comprehensive nutrition as a base fertilizer, chemical fertilizer effect quickly as top-dressing; urea as top-dressing, should be applied 4 to 6 days in advance, phosphorus mobility is small, as the base fertilizer, seed fertilizer, topdressing can be, but for When applying fertilizer, it is necessary to open the ditch and apply it to the root layer.
Six fertilize fertilization ammonium sulfate, ammonium bicarbonate, human fecal urine is an acidic fertilizer, can not be mixed with plant ash; ammonium chloride, potassium chloride can not be used in potatoes and other bogey fluorine crops; urea as the concentration of root dressing can not exceed 1 % is appropriate.
Author: Chen Maochun