First of all, walnut powder for early walnut varieties and late walnut varieties of two strains, the former is more suitable for relatively dense cultivation of better conditions, the latter is suitable for relatively barren conditions of the park relatively sparse cultivation.
In addition, different walnut varieties suitable for different natural climatic conditions under cultivation, in order to fully demonstrate his excellent characteristics, in a good performance in place A, in place B may not perform well.
Currently more representative of the varieties are Liao nuclear one, giant early walnut, suitable for planting in North China, Northeast local, Northwest local areas, the performance of the results early, fast yield, good cold resistance; temperature 185, Xinxin 2, etc., in Xinjiang, South Xinjiang region, good performance; Yangbi walnut in Yunnan region, good performance.
The key indicators of the geographical environment of the introduction of walnut include precipitation, frost-free period, minimum temperature, etc., if the conditions are similar to each other in the region of the introduction, the success rate will be higher.
If someone recommends that his walnut varieties can be adapted anywhere, it is basically concluded that he is a liar, it is better to be cautious.