Newhall navel orange planting technology

Newhall navel orange originated from the United States, China was introduced in 1978, Newhall navel orange in China has been a good market, the following mainly talk about Newhall navel orange planting technology.

First, do a good job of soil improvement and planting

Before planting, dig planting trenches, bury weeds, straw, cake fertilizer and other soil improvement. The ditch is 0.7 meters deep and 1.0-1.3 meters wide. First put a layer of straw at the bottom of the ditch, such as red and yellow soil acid soil, then evenly spread some lime on the straw, cover a layer of soil, and then put weeds, straw, sprinkle some lime, cover a layer of soil. After leveling, put rice straw, weeds, pig and cow dung, tung oil cake and so on, mix with the soil and backfill, so that the ditch surface is about 30 cm above the ground. Finally, cover the surface of the planting ditch with a layer of rotten farm manure to make the backfill settle naturally. When improving the soil, each plant uses 20-25 kg of rice straw and weeds, 1.5-2 kg of lime, 10 kg of cake fertilizer and pig and cow manure. Colonization after the beginning of spring (frost-damaged areas). Water was watered once a day within 1-7 days after planting, and thin water and fertilizer was irrigated after 10-15 days.

2. Water management

It should be irrigated timely in drought and drained in rainy season. Sprinkler irrigation, drip irrigation and irrigation can be used. The orchard should not be irrigated one month before fruit harvest, and must be irrigated once within one week after fruit harvest.

Third, protect flowers and fruits

Combined with the nutritional status of navel orange trees, nutritional growth regulators were properly used to improve fruit setting rate and yield. It can be sprayed with 0.01% luteolin 2000 × 2500 liquid 40mg / 50mg / kg 0.2% potassium dihydrogen phosphate, sprayed once every 15 days, twice in succession, generally sprayed at the time of Xiehua 2cm 3 / 4 and before the second physiological drop. Promote the use of micro-fertilizer and nutrient elements to protect flowers and fruits, and prohibit the high concentration and repeated use of growth regulators to protect flowers and fruits.