1.Selection and breeding There are two types of celery: solid straw celery and empty straw celery. The solid straw celery has a large petiole, strong adaptability, high yield, and is resistant to storage, but grows slowly; while the empty straw celery ha-----!
At present, wheat has reached the harvesting period and even started planting summer maize. In the summer corn fertilization method, many farmers have misunderstandings, especially the “one shelling†fertilization method has brought a lot of l-----!
In order to prevent the grape cuttings from losing too much water and affecting the survival rate, it should be stored in the ditch in time. Before entering the ditch, dip the new high-fat film mother liquor for a few seconds to avoid mold and deterioration during storage and lose the ability to g-----!
Answer: Kneeling and detaching. When the new shoots grow to 25 to 30 centimeters in length, they should be tied in time, and the use of the word binding method can prevent the new shoots from being rubbed and wounded. At the same time, the tendrils were removed at the tip of the shoot to support t-----!
Planting green manure crops in winter plays an important role in improving soil, fertility, improving yield and quality of the next crop, and reducing environmental pollution. Wintergreen fertilizer high-yield cultivation techniques are as follows: The t-----!
First, the key point of grape shelter from rain 1. The construction of shelters is now a semi-arched simple shelter. As shown in the figure, the row spacing is 2.5-3 meters, the column height is 2.3-2.5m, the spacing is 4-6m, the shed surface is 1.8m from the ground, the shelter is 1.5-2.0m, the -----!
Herbal identification Microscopic identification Root cross-section: The cork layer is 6-10 rows of cells, and the cells are flat and tangentially elongated. There are brown inclusions, the inner layer of the plug is 3-6 rows of cells, some of the cells contain calcium oxalate crystals, and the-----!