Cotton should pay attention to foliar fertilizer

The growth period of cotton is long, the demand for nutrients is large, and the root function is obviously reduced at the later stage, but the leaf surface is larger and the function of fertilizer absorption is stronger. The foliar spray fertilizer has a significant effect on increasing yi.......

Forging Influence on Metal Structure, Properties and Forging Defects

Forging defects include surface defects and internal defects. Some forging defects will affect the processing quality of subsequent processes, while others will seriously affect the performance of the forgings, reduce the service life of the finished products, and even endanger the safety........

Ammonium bicarbonate is better than urea

The third operation team of Hebei Zhangzhou Nongda Experimental Farm is located in the alluvial plain of Juma River. The soil is sandy and the fertility is not too high. The main crops planted are fruit trees, peanuts, and some winter wheat and summer corn. The winter wheat planting area w.......

Plum tree fertilization technology

The amount of fertilizer needed by Li Shu is related to the growth of tree age, the increase and decrease of the amount of results, and the changes in environmental conditions. Therefore, it is necessary to look at the tree to fertilize and see the fertilization.
(1) Determine the amo.......

Fruit trees are applied to organic fertilizers.

Fruit trees need balanced supply of nutrients. Although the nutrients in organic fertilizers are very rich, the proportion and content of NPK cannot fully satisfy the growth requirements of fruit trees. Especially in the process of composting of organic fertilizer, the nitrogen content wil.......