1, topdressing too late. Farmers are accustomed to topdressing before and after tasseling, but they do not know that they have missed the best time.

2, a bombardment type of topdressing. When planting, put all the fertilizer into the fertilizer once, or sprinkle all the fertilizer .......

The first is to breed good breeds. The mother pheasant is required to be physically strong, well-balanced, well-developed, lively, and eye-catching. Gongshan chicken weighing more than 1.5 kilograms, well-proportioned parts, well-developed, developed pectoral muscles, crown.......

Q: In the south, there are both single-season rice and double-season rice. How to fertilize reasonably?

Experts: Single-season rice has a longer growth period and higher yield. It usually grows for 90-120 days and yields over 500 kg per mu. Therefore, the amount of fertilization is.......

At present, there are many kinds of chemical fertilizers, and there are more than 10 commonly used ones. However, although there are two types of chemical fertilizers, although the vegetables can increase the yield, they can cause pollution of vegetables, causing poisoning and even life-th.......

First, windy weather vegetable management

In the winter, windy weather occurs frequently, causing great harm to greenhouse vegetables, plastic greenhouses and other vegetables and open-air garlic production. Scratching the shed film, mulching film, scraping grasshoppers and other p.......

1 Hawthorn potted preparation

1.1 seedling selection

Potted soft seed hawthorn is the key to selecting one-year healthy seedlings. It is the key to improving the survival rate and cultivating the tree shape by selecting seedlings with rich roots with developed roots, more r.......

First, watering time is good

Watering time in the summer should be selected in the morning or evening, which can not only achieve the cooling effect, but also not cause damage to the vegetable roots. In particular, watering in the evening can effectively reduce the night temperatur.......

Due to the improper use of pesticides by fruit farmers, the fruit trees should be phytotoxic. According to the specific causes and damage degree of the phytotoxicity, the following remedial measures should be taken to minimize the damage of the fruit trees.

Once the water is spraye.......

Experimental principle

Eukaryotic DNA is present in the nucleus in the form of chromosomes. DNA is prepared to separate DNA from proteins, lipids, and sugars while maintainin.......

Technical characteristics of rice field management in heavy rainfall weather The impact of heavy rainfall on rice growth is mainly reflected in four aspects:

First, the rice seedlings are flooded, affecting the occurrence of tillers, and being flooded for a long time (generally drow.......