How to cultivate strong rice seedlings with paclobutrazol and uniconazole
Paclobutrazol and uniconazole are both plant growth regulators, which have good effects on controlling growth and promoting tiller, preventing rigidity, preventing abortive seedlings and increasing panicle, grain and yield in rice seedling raising. The method of using paclobutrazol is to spray 100kg paclobutrazol with 300ppm concentration per mu of seedling field when one leaf is of one heart, so as not to miss spray or re-spray. When spraying, it is necessary to release the moisture of the seedling field and keep the field free of stagnant water. The method of using uniconazole is as follows: soaking seeds with 50-200ppm concentration of uniconazole solution for 48 hours, the ratio of seed to drug dose is 1: 1.2: 1.5. In the process of soaking the seeds, the seeds should be stirred for 4 times to make the seeds absorb drugs evenly. After soaking the seeds, rinse with clean water before sprouting. When the seeds were soaked with uniconazole, the seeds were soaked and germinated one day earlier than the conventional ones.
- Prev
How to master the method of fertilization for rice
Organic fertilizer is used in combination with chemical fertilizer. Organic fertilizer is rich in organic matter, which can fertilize the soil, provide a variety of nutrients, and provide compounds with auxin and hormone properties. The application of organic fertilizer helps to maintain the storage of nitrogen in paddy soil. Organic fertilizers release nutrients slowly, while chemical fertilizers are mostly quick-acting fertilizers with fast nutrient supply. The combination of the two can make the nutrient supply more stable. Organic acids and humic acids in organic fertilizers can combine with iron and aluminum in soil, reduce the fixation of phosphate fertilizer by soil, and increase the amount of available phosphorus and the content of phosphate fertilizer in soil.
- Next
How to prolong the rice seedling age and prepare for drought resistance and rain planting?
In normal years, the seedling age of machine transplanting is about 30 days, that of throwing seedlings is about 40 days, and that of water raising seedlings is about 50 days. If the planting water comes late, it will be faced with extending the seedling age to more than 60 days in order to wait for the seedlings to be planted in water. First, sparse sowing to cultivate long-aged and strong seedlings. That is to say, by expanding the area of seedling bed, reducing the sowing amount per square meter and prolonging the lag tillering period of seedlings, the age elasticity of early sowing seedlings can be effectively increased, the seedling quality can be improved, and the per unit yield can be improved. it can also solve the contradiction of anhydrous transplanting in the early stage.
Related
- The first cup of black tea in spring, the flavor and history of tea gardens in Kenya, Africa
- The computer can not only choose potatoes, but also grow tea rice. AI will grow winter oolong tea champion.
- It is not only the inflated tea bitten by insects, but also engraved with the four seasons tea in Beipu.
- The Oriental Beauty Tea Festival in Zhuxian County takes the stage at the weekend to experience the plus-size feast of oil tea.
- & quot; Oriental Beauty Tea & Exploration of Emei in Hsinchu, the hometown of quot;
- The new variety of strawberry "Tainong 1" dessert is the first choice with mellow aroma. Crimson gorgeous
- History of Tea in Taiwan: from Wild Inner Mountain to Export Tea Garden
- Two types of Taiwan Oriental Beauty Black Tea won the British three-Star Award for Childhood Tea Xiang Zhang Jiaqi changed from pilot to champion tea maker.
- Banana species and varieties: the planting history of Taiwan Xianren banana and dwarf banana is long, is banana disease resistant?
- Coffee planting Technology: Qianjie Coffee from Seedling to harvesting